feat(cdc_acm): Add CDC-ACM support and remove old test applications

- Implemented CDC-ACM (USB Virtual COM Port) support for the slave_node application.
- Removed the now obsolete 'hello_world' and 'stm32g431_tests' applications.

README.de.md

@@ -1,3 +1,5 @@
+<img src="./docs/img/logo.png" alt="Logo" width="100"/>
+
 🇩🇪 Deutsch | [🇬🇧 English](README.md) | [🇫🇷 Français](README.fr.md) | [🇪🇸 Español](README.es.md)
 
 # Modulares Bewässerungssystem
@@ -11,6 +13,8 @@ Die detaillierte Dokumentation befindet sich im Verzeichnis [`docs/`](./docs/):
 *   **[Konzept](./docs/concept.de.md)**: Beschreibt die Systemarchitektur, die verwendeten Komponenten und die grundlegenden Design-Entscheidungen.
 *   **[MODBUS Register](./docs/modbus-registers.de.md)**: Definiert die Register-Map für die Kommunikation mit den Slave-Nodes.
 *   **[Projektplan](./docs/planning.de.md)**: Enthält den Entwicklungs- und Implementierungsplan.
+*   **[Firmware-Handbuch](./docs/firmware-manual.de.md)**: Beschreibt den Funktionsumfang und die Bedienung der Slave-Node-Firmware.
+*   **[Modbus Test-Tool](./software/tools/modbus_tool/README.de.md)**: Anleitung für das Python-basierte Kommandozeilen-Tool zum Testen der Slaves.
 
 ## Schnellstart
 

README.es.md

@@ -1,3 +1,5 @@
+<img src="./docs/img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](README.de.md) | [🇬🇧 English](README.md) | [🇫🇷 Français](README.fr.md) | 🇪🇸 Español
 
 # Sistema de riego modular

README.fr.md

@@ -1,3 +1,5 @@
+<img src="./docs/img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](README.de.md) | [🇬🇧 English](README.md) | 🇫🇷 Français | [🇪🇸 Español](README.es.md)
 
 # Système d'irrigation modulaire

README.md

@@ -1,3 +1,5 @@
+<img src="./docs/img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](README.de.md) | 🇬🇧 English | [🇫🇷 Français](README.fr.md) | [🇪🇸 Español](README.es.md)
 
 # Modular Irrigation System

docs/concept.de.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 🇩🇪 Deutsch | [🇬🇧 English](concept.en.md) | [🇫🇷 Français](concept.fr.md) | [🇪🇸 Español](concept.es.md)
 
 # Konzept: Modulares Bewässerungssystem

docs/concept.en.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](concept.de.md) | 🇬🇧 English | [🇫🇷 Français](concept.fr.md) | [🇪🇸 Español](concept.es.md)
 
 # Concept: Modular Irrigation System

docs/concept.es.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](concept.de.md) | [🇬🇧 English](concept.en.md) | [🇫🇷 Français](concept.fr.md) | 🇪🇸 Español
 
 # Concepto: Sistema de riego modular

docs/concept.fr.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](concept.de.md) | [🇬🇧 English](concept.en.md) | 🇫🇷 Français | [🇪🇸 Español](concept.es.md)
 
 # Concept : Système d'irrigation modulaire

docs/img/logo.svg

@@ -0,0 +1,16 @@
+<svg width="100" height="120" viewBox="0 0 100 120" xmlns="http://www.w3.org/2000/svg" aria-labelledby="logoTitle">
+  <title id="logoTitle">Logo: Wassertropfen mit integriertem Chip</title>
+  
+  <path 
+    d="M50 115 C 85 85, 95 65, 95 45 A 45 45 0 1 0 5 45 C 5 65, 15 85, 50 115 Z" 
+    fill="#2563EB" 
+  />
+  
+  <g fill="#FFFFFF">
+    <rect x="25" y="35" width="50" height="8" rx="2"/>
+    <rect x="25" y="50" width="35" height="8" rx="2"/>
+    <rect x="70" y="50" width="5" height="8" rx="2"/>
+    <rect x="25" y="65" width="50" height="8" rx="2"/>
+  </g>
+  
+</svg>

docs/modbus-registers.de.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 🇩🇪 Deutsch | [🇬🇧 English](modbus-registers.en.md) | [🇫🇷 Français](modbus-registers.fr.md) | [🇪🇸 Español](modbus-registers.es.md)
 
 # MODBUS Register Map Definition v1.0
@@ -47,6 +49,7 @@ Alle Register sind in einer einzigen, durchgehenden Liste pro Register-Typ (`Inp
 | **0x0002** | `MAX_SCHLIESSZEIT_S`          | Ventil            | Sicherheits-Timeout in Sekunden für den Schliessen-Vorgang.                                                                                |
 | **0x0010** | `DIGITAL_AUSGAENGE_ZUSTAND`   | Ausgänge          | Bitmaske zum Lesen und Schreiben der Ausgänge. Bit 0: Ausgang 1, Bit 1: Ausgang 2. `1`=AN, `0`=AUS.                                         |
 | **0x00F0** | `WATCHDOG_TIMEOUT_S`          | System            | Timeout des Fail-Safe-Watchdogs in Sekunden. `0`=Deaktiviert.                                                                             |
+| **0x00F1** | `DEVICE_RESET`                | System            | Schreibt `1` um das Gerät neu zu starten.                                                                                                 |
 | **0x0100** | `FWU_COMMAND`                 | Firmware-Update   | `1`: **Verify Chunk**: Der zuletzt übertragene Chunk wurde vom Client als gültig befunden. Der Slave soll ihn nun ins Flash schreiben. `2`: **Finalize Update**: Alle Chunks sind übertragen. Installation abschliessen und neu starten. |
 | **0x0101** | `FWU_CHUNK_OFFSET_LOW`        | Firmware-Update   | Untere 16 Bit des 32-Bit-Offsets, an den der nächste Chunk geschrieben werden soll.                                                         |
 | **0x0102** | `FWU_CHUNK_OFFSET_HIGH`       | Firmware-Update   | Obere 16 Bit des 32-Bit-Offsets.                                                                                                          |

docs/modbus-registers.en.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](modbus-registers.de.md) | 🇬🇧 English | [🇫🇷 Français](modbus-registers.fr.md) | [🇪🇸 Español](modbus-registers.es.md)
 
 # MODBUS Register Map Definition v1.0

docs/modbus-registers.es.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](modbus-registers.de.md) | [🇬🇧 English](modbus-registers.en.md) | [🇫🇷 Français](modbus-registers.fr.md) | 🇪🇸 Español
 
 # Definición del mapa de registros MODBUS v1.0

docs/modbus-registers.fr.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](modbus-registers.de.md) | [🇬🇧 English](modbus-registers.en.md) | 🇫🇷 Français | [🇪🇸 Español](modbus-registers.es.md)
 
 # Définition de la carte des registres MODBUS v1.0

docs/planning.de.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 🇩🇪 Deutsch | [🇬🇧 English](planning.en.md) | [🇫🇷 Français](planning.fr.md) | [🇪🇸 Español](planning.es.md)
 
 # Projektplan: Modulares Bewässerungssystem

docs/planning.en.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](planning.de.md) | 🇬🇧 English | [🇫🇷 Français](planning.fr.md) | [🇪🇸 Español](planning.es.md)
 
 # Project Plan: Modular Irrigation System

docs/planning.es.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](planning.de.md) | [🇬🇧 English](planning.en.md) | [🇫🇷 Français](planning.fr.md) | 🇪🇸 Español
 
 # Plan del proyecto: Sistema de riego modular

docs/planning.fr.md

@@ -1,3 +1,5 @@
+<img src="./img/logo.png" alt="Logo" width="100"/>
+
 [🇩🇪 Deutsch](planning.de.md) | [🇬🇧 English](planning.en.md) | 🇫🇷 Français | [🇪🇸 Español](planning.es.md)
 
 # Plan de projet : Système d'irrigation modulaire

software/CMakeLists.txt

@@ -1,14 +1,8 @@
-# SPDX-License-Identifier: Apache-2.0
+cmake_minimum_required(VERSION 3.13.1)
 
-cmake_minimum_required(VERSION 3.20.0)
+project(software)
 
-# This line should ideally be after project() and find_package(Zephyr)
+add_subdirectory(modules/modbus_server)
-# target_include_directories(app PRIVATE ${ZEPHYR_BASE}/include/zephyr/drivers) # <-- WRONG POSITION
+add_subdirectory(modules/valve)
-
+add_subdirectory(modules/fwu)
-list(APPEND BOARD_ROOT ${CMAKE_CURRENT_SOURCE_DIR})
+add_subdirectory(apps/stm32g431_tests)
-
-find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
-project(valve_node)
-
-target_include_directories(app PRIVATE ${ZEPHYR_BASE}/include/zephyr/drivers)
-target_sources(app PRIVATE src/main2.c)

software/CMakeLists.txt.orig

@@ -1,25 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-
-cmake_minimum_required(VERSION 3.20.0)
-
-list(APPEND BOARD_ROOT ${CMAKE_CURRENT_SOURCE_DIR})
-
-find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
-project(valve_node)
-
-target_sources(app PRIVATE src/main.c)
-target_sources(app PRIVATE lib/canbus.c)
-
-# source files for modbus waterlevel sensor
-zephyr_library_sources_ifdef(CONFIG_HAS_MODBUS_WATERLEVEL_SENSOR
-    lib/waterlevel_sensor.c
-)
-
-#source files for valve
-zephyr_library_sources_ifdef(CONFIG_HAS_VALVE
-    lib/valve.c
-)
-
-zephyr_include_directories(
-    lib
-)

software/apps/gateway/CMakeLists.txt

@@ -0,0 +1,9 @@
+cmake_minimum_required(VERSION 3.20)
+
+# Include the main 'software' directory as a module to find boards, libs, etc.
+list(APPEND ZEPHYR_EXTRA_MODULES ${CMAKE_CURRENT_SOURCE_DIR}/../..)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(gateway)
+
+target_sources(app PRIVATE src/main.c)

software/apps/gateway/prj.conf

@@ -0,0 +1,2 @@
+# Gateway Configuration
+CONFIG_NETWORKING=y

software/apps/gateway/src/main.c

@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2025 Eduard Iten
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/kernel.h>
+
+int main(void)
+{
+	printk("Hello from Gateway!\n");
+	return 0;
+}

software/apps/slave_node/CMakeLists.txt

@@ -0,0 +1,27 @@
+cmake_minimum_required(VERSION 3.20)
+
+# Point BOARD_ROOT and DTS_ROOT to the 'software' directory, which contains 'boards'.
+list(APPEND BOARD_ROOT ${CMAKE_CURRENT_SOURCE_DIR}/../..)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(slave_node)
+
+list(APPEND KCONFIG_SOURCE ${CMAKE_CURRENT_SOURCE_DIR}/../../modules/modbus_server/Kconfig)
+list(APPEND KCONFIG_SOURCE ${CMAKE_CURRENT_SOURCE_DIR}/../../modules/valve/Kconfig)
+list(APPEND KCONFIG_SOURCE ${CMAKE_CURRENT_SOURCE_DIR}/../../modules/fwu/Kconfig)
+
+target_include_directories(app PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../modules/valve/include
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../modules/modbus_server/include
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../modules/fwu/include
+)
+
+# Add the source files from the app and the libraries
+target_sources(app PRIVATE
+    src/main.c
+    src/shell_modbus.c
+    src/shell_system.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../modules/valve/src/valve.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../modules/modbus_server/src/modbus_server.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../modules/fwu/src/fwu.c
+)

software/apps/slave_node/boards/bluepill_f103rb.conf

@@ -0,0 +1,6 @@
+# Disable UART console
+CONFIG_UART_CONSOLE=n
+
+# Enable RTT console
+CONFIG_RTT_CONSOLE=y
+CONFIG_USE_SEGGER_RTT=y

software/apps/slave_node/boards/bluepill_f103rb.overlay

@@ -0,0 +1,43 @@
+/ {
+    chosen {
+        zephyr,console = &rtt;
+        zephyr,shell = &rtt;
+        zephyr,settings-partition = &storage_partition;
+    };
+
+    rtt: rtt {
+        compatible = "segger,rtt-uart";
+        #address-cells = <1>;
+        #size-cells = <0>;
+        label = "RTT";
+        status = "okay";
+    };
+};
+
+&flash0 {
+    partitions {
+        compatible = "fixed-partitions";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        /* Application partition starts at the beginning of flash */
+        slot0_partition: partition@0 {
+            label = "image-0";
+            reg = <0x00000000 DT_SIZE_K(120)>;
+        };
+
+        /* Use the last 8K for settings */
+        storage_partition: partition@1E000 {
+            label = "storage";
+            reg = <0x0001E000 DT_SIZE_K(8)>;
+        };
+    };
+};
+
+&usart1 {
+	modbus0 {
+		compatible = "zephyr,modbus-serial";
+		status = "okay";
+	};
+	status = "okay";
+};

software/apps/slave_node/boards/weact_stm32g431_core.overlay

@@ -0,0 +1,9 @@
+&usart1 {
+	modbus0 {
+		compatible = "zephyr,modbus-serial";
+		status = "okay";
+	};
+	status = "okay";
+    pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
+    pinctrl-names = "default";
+};

software/apps/slave_node/cdc-acm.overlay

@@ -0,0 +1,10 @@
+&zephyr_udc0 {
+	cdc_acm_uart0: cdc_acm_uart0 {
+		compatible = "zephyr,cdc-acm-uart";
+
+		modbus0 {
+			compatible = "zephyr,modbus-serial";
+			status = "okay";
+		};
+	};
+};

software/apps/slave_node/overlay-cdc-acm.conf

@@ -0,0 +1,4 @@
+CONFIG_USB_DEVICE_STACK=y
+CONFIG_USB_DEVICE_PRODUCT="Modbus slave node"
+CONFIG_UART_LINE_CTRL=y
+CONFIG_USB_DEVICE_INITIALIZE_AT_BOOT=n

software/apps/slave_node/prj.conf

@@ -0,0 +1,24 @@
+# Enable Console and printk for logging
+CONFIG_CONSOLE=y
+CONFIG_LOG=y
+
+# Enable Shell
+CONFIG_SHELL=y
+CONFIG_SHELL_BACKEND_RTT=y
+CONFIG_REBOOT=y
+
+# Enable Settings Subsystem
+CONFIG_SETTINGS=y
+CONFIG_SETTINGS_NVS=y
+CONFIG_NVS=y
+CONFIG_FLASH=y
+CONFIG_FLASH_MAP=y
+CONFIG_FLASH_PAGE_LAYOUT=y
+CONFIG_SETTINGS_LOG_LEVEL_DBG=y
+
+# Config modbus
+CONFIG_UART_INTERRUPT_DRIVEN=y
+CONFIG_MODBUS=y
+CONFIG_MODBUS_ROLE_SERVER=y
+CONFIG_MODBUS_BUFFER_SIZE=256
+

software/apps/slave_node/src/main.c

@@ -0,0 +1,28 @@
+#include <zephyr/kernel.h>
+#include <zephyr/settings/settings.h>
+#include <zephyr/logging/log.h>
+#include <modbus_server.h>
+#include <valve.h>
+#include <fwu.h>
+
+LOG_MODULE_REGISTER(main, LOG_LEVEL_INF);
+
+int main(void)
+{
+	LOG_INF("Starting Irrigation System Slave Node");
+
+	if (settings_subsys_init() || settings_load()) {
+		LOG_ERR("Settings initialization or loading failed");
+	}
+
+	valve_init();
+	fwu_init();
+
+	if (modbus_server_init()) {
+		LOG_ERR("Modbus RTU server initialization failed");
+		return 0;
+	}
+	
+	LOG_INF("Irrigation System Slave Node started successfully");
+	return 0;
+}

software/apps/slave_node/src/shell_modbus.c

@@ -0,0 +1,119 @@
+#include <zephyr/shell/shell.h>
+#include <stdlib.h>
+#include <modbus_server.h>
+#include <valve.h>
+
+static int cmd_modbus_set_baud(const struct shell *sh, size_t argc, char **argv)
+{
+	if (argc != 2) {
+		shell_error(sh, "Usage: set_baud <baudrate>");
+		return -EINVAL;
+	}
+
+	uint32_t new_baud = (uint32_t)strtoul(argv[1], NULL, 10);
+	const uint32_t valid_baud_rates[] = {1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200};
+	bool is_valid = false;
+
+	for (int i = 0; i < ARRAY_SIZE(valid_baud_rates); i++) {
+		if (new_baud == valid_baud_rates[i]) {
+			is_valid = true;
+			break;
+		}
+	}
+
+	if (!is_valid) {
+		char error_msg[128];
+		int offset = snprintf(error_msg, sizeof(error_msg), "Invalid baudrate. Valid rates are: ");
+		for (int i = 0; i < ARRAY_SIZE(valid_baud_rates); i++) {
+			offset += snprintf(error_msg + offset, sizeof(error_msg) - offset, "%u ", valid_baud_rates[i]);
+		}
+		shell_error(sh, "%s", error_msg);
+		return -EINVAL;
+	}
+
+	if (modbus_reconfigure(new_baud, modbus_get_unit_id()) != 0) {
+		shell_error(sh, "Failed to apply new baudrate");
+	} else {
+		shell_print(sh, "Modbus baudrate set to: %u (and saved)", new_baud);
+	}
+
+	return 0;
+}
+
+static int cmd_modbus_set_id(const struct shell *sh, size_t argc, char **argv)
+{
+	if (argc != 2) {
+		shell_error(sh, "Usage: set_id <slave_id>");
+		return -EINVAL;
+	}
+
+	uint32_t new_id_u32 = (uint32_t)strtoul(argv[1], NULL, 10);
+	if (new_id_u32 == 0 || new_id_u32 > 247) {
+		shell_error(sh, "Invalid slave ID: %s. Must be between 1 and 247.", argv[1]);
+		return -EINVAL;
+	}
+	uint8_t new_id = (uint8_t)new_id_u32;
+
+	if (modbus_reconfigure(modbus_get_baudrate(), new_id) != 0) {
+		shell_error(sh, "Failed to apply new slave ID");
+	} else {
+		shell_print(sh, "Modbus slave ID set to: %u (and saved)", new_id);
+	}
+
+	return 0;
+}
+
+static int cmd_valve_set_open_time(const struct shell *sh, size_t argc, char **argv)
+{
+    if (argc != 2) {
+        shell_error(sh, "Usage: set_open_time <seconds>");
+        return -EINVAL;
+    }
+
+    uint16_t seconds = (uint16_t)strtoul(argv[1], NULL, 10);
+    valve_set_max_open_time(seconds);
+    shell_print(sh, "Max opening time set to: %u seconds (and saved)", seconds);
+
+    return 0;
+}
+
+static int cmd_valve_set_close_time(const struct shell *sh, size_t argc, char **argv)
+{
+    if (argc != 2) {
+        shell_error(sh, "Usage: set_close_time <seconds>");
+        return -EINVAL;
+    }
+
+    uint16_t seconds = (uint16_t)strtoul(argv[1], NULL, 10);
+    valve_set_max_close_time(seconds);
+    shell_print(sh, "Max closing time set to: %u seconds (and saved)", seconds);
+
+    return 0;
+}
+
+static int cmd_config_show(const struct shell *sh, size_t argc, char **argv)
+{
+	shell_print(sh, "Current Modbus Configuration:");
+	shell_print(sh, "  Baudrate: %u", modbus_get_baudrate());
+	shell_print(sh, "  Slave ID: %u", modbus_get_unit_id());
+    shell_print(sh, "Current Valve Configuration:");
+    shell_print(sh, "  Max Opening Time: %u s", valve_get_max_open_time());
+    shell_print(sh, "  Max Closing Time: %u s", valve_get_max_close_time());
+	return 0;
+}
+
+SHELL_STATIC_SUBCMD_SET_CREATE(sub_modbus_cmds,
+	SHELL_CMD(set_baud, NULL, "Set Modbus baudrate", cmd_modbus_set_baud),
+	SHELL_CMD(set_id,   NULL, "Set Modbus slave ID", cmd_modbus_set_id),
+	SHELL_SUBCMD_SET_END
+);
+
+SHELL_STATIC_SUBCMD_SET_CREATE(sub_valve_cmds,
+    SHELL_CMD(set_open_time, NULL, "Set max valve opening time", cmd_valve_set_open_time),
+    SHELL_CMD(set_close_time, NULL, "Set max valve closing time", cmd_valve_set_close_time),
+    SHELL_SUBCMD_SET_END
+);
+
+SHELL_CMD_REGISTER(modbus, &sub_modbus_cmds, "Modbus configuration", NULL);
+SHELL_CMD_REGISTER(valve, &sub_valve_cmds, "Valve configuration", NULL);
+SHELL_CMD_REGISTER(show_config, NULL, "Show all configurations", cmd_config_show);

software/apps/slave_node/src/shell_system.c

@@ -0,0 +1,12 @@
+#include <zephyr/shell/shell.h>
+#include <zephyr/sys/reboot.h>
+
+static int cmd_reset(const struct shell *sh, size_t argc, char **argv)
+{
+	shell_print(sh, "Rebooting system...");
+	k_sleep(K_MSEC(100)); // Allow the shell to print the message
+	sys_reboot(SYS_REBOOT_WARM);
+	return 0;
+}
+
+SHELL_CMD_REGISTER(reset, NULL, "Reboot the system", cmd_reset);

software/boards/iten/bluepill_f103rb/Kconfig.bluepill_f103rb

@@ -0,0 +1,5 @@
+# Copyright (c) 2025 Eduard Iten
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_BLUEPILL_F103RB
+	select SOC_STM32F103XB

software/boards/iten/bluepill_f103rb/bluepill_f103rb.dts

@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2025 Eduard Iten
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <st/f1/stm32f1.dtsi>
+#include <st/f1/stm32f103Xb.dtsi>
+#include <st/f1/stm32f103r(8-b)tx-pinctrl.dtsi>
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+
+/ {
+	model = "Blue-Pill STM32F103RB";
+	compatible = "iten,bluepill-f103rb";
+
+	chosen {
+		zephyr,console = &usart1;
+		zephyr,shell-uart = &usart1;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led_status: led_status {
+			gpios = <&gpioc 13 GPIO_ACTIVE_LOW>;
+			label = "User LED";
+		};
+	};
+
+	aliases {
+		led0 = &led_status;
+		watchdog0 = &iwdg;
+	};
+};
+
+
+&clk_lsi {
+	status = "okay";
+};
+
+&clk_hse {
+	clock-frequency = <DT_FREQ_M(8)>;
+	status = "okay";
+};
+
+&pll {
+	mul = <9>;
+	clocks = <&clk_hse>;
+	status = "okay";
+};
+
+&rcc {
+	clocks = <&pll>;
+	clock-frequency = <DT_FREQ_M(72)>;
+	ahb-prescaler = <1>;
+	apb1-prescaler = <2>;
+	apb2-prescaler = <1>;
+	adc-prescaler = <6>;
+};
+
+
+&usart1 {
+	pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
+	pinctrl-names = "default";
+	current-speed = <115200>;
+	status = "okay";
+};
+
+&iwdg {
+	status = "okay";
+};
+
+
+&clk_lsi {
+	status = "okay";
+};
+
+&clk_hse {
+	clock-frequency = <DT_FREQ_M(8)>;
+	status = "okay";
+};
+
+&pll {
+	mul = <9>;
+	clocks = <&clk_hse>;
+	status = "okay";
+};
+
+&rcc {
+	clocks = <&pll>;
+	clock-frequency = <DT_FREQ_M(72)>;
+	ahb-prescaler = <1>;
+	apb1-prescaler = <2>;
+	apb2-prescaler = <1>;
+	adc-prescaler = <6>;
+};
+
+&exti {
+	status = "okay";
+};
+
+&dma1 {
+	status = "okay";
+};

software/boards/iten/bluepill_f103rb/bluepill_f103rb_defconfig

@@ -0,0 +1,4 @@
+# Copyright (c) 2025 Eduard Iten
+# SPDX-License-Identifier: Apache-2.0
+CONFIG_SERIAL=y
+CONFIG_GPIO=y

software/boards/iten/bluepill_f103rb/board.cmake

@@ -1,11 +1,12 @@
+# Copyright (c) 2025 Eduard Iten
 # SPDX-License-Identifier: Apache-2.0
 
 # keep first
-board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=hw")
 board_runner_args(jlink "--device=STM32F103RB" "--speed=4000")
+board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=hw")
 
 # keep first
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
 include(${ZEPHYR_BASE}/boards/common/stm32cubeprogrammer.board.cmake)
 include(${ZEPHYR_BASE}/boards/common/openocd-stm32.board.cmake)
-include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
 include(${ZEPHYR_BASE}/boards/common/blackmagicprobe.board.cmake)

software/boards/iten/bluepill_f103rb/board.yml

@@ -0,0 +1,8 @@
+# Copyright (c) 2025 Eduard Iten
+# SPDX-License-Identifier: Apache-2.0
+
+board:
+  name: bluepill_f103rb
+  vendor: iten
+  socs:
+  - name: stm32f103xb

software/boards/iten/valve_node/Kconfig.valve_node

@@ -1,58 +0,0 @@
-config BOARD_VALVE_NODE
-    select SOC_STM32F103XB
-
-mainmenu "APP CAN Settings"
-config LOOPBACK_MODE
-	bool "Loopback LOOPBACK_MODE"
-	default n
-	help
-	  Set the can controller to loopback mode.
-	  This allows testing without a second board.
-
-mainmenu "APP Logging Settings"
-config LOG_CAN_LEVEL
-	int "Log level for CAN"
-	default 3
-	range 0 7
-	help
-	  Set the log level for CAN messages.
-	  0 = None, 1 = Error, 2 = Warning, 3 = Info, 4 = Debug, 5 = Trace, 6 = Debug2, 7 = Debug3
-
-config LOG_SETTINGS_LEVEL
-	int "Log level for settings"
-	default 3
-	range 0 7
-	help
-	  Set the log level for CAN messages.
-	  0 = None, 1 = Error, 2 = Warning, 3 = Info, 4 = Debug, 5 = Trace, 6 = Debug2, 7 = Debug3
-
-config LOG_WATERLEVELSENSOR_LEVEL
-	int "Log level for waterlevel sensor"
-	default 3
-	range 0 7
-	help
-	  Set the log level for CAN messages.
-	  0 = None, 1 = Error, 2 = Warning, 3 = Info, 4 = Debug, 5 = Trace, 6 = Debug2, 7 = Debug3
-
-config LOG_VALVE_LEVEL
-	int "Log level for valve control"
-	default 3
-	range 0 7
-	help
-	  Set the log level for valve control messages.
-	  0 = None, 1 = Error, 2 = Warning, 3 = Info, 4 = Debug, 5 = Trace, 6 = Debug2, 7 = Debug3
-
-mainmenu "Irrigation controller node configuration"
-config HAS_MODBUS_WATERLEVEL_SENSOR
-    bool "Has modbus water level sensor"
-    default n
-    help
-      Enable modbus water level sensor support.
-      This allows reading the water level from a modbus device.
-
-config HAS_VALVE
-	bool "Has valve control"
-	default n
-	help
-	  Enable valve control support.
-	  This allows controlling valves via CAN messages.

software/boards/iten/valve_node/board.yml

@@ -1,10 +0,0 @@
-board:
-  name: valve_node
-  full_name: Irrigation system CANbus valve node
-  socs:
-  - name: stm32f103xb
-  # revision:
-  #   format: number
-  #   default: "1"
-  #   revisions:
-  #   -name: "1"

software/boards/iten/valve_node/valve_node.dts

@@ -1,206 +0,0 @@
-/*
- * Copyright (c) 2017 Linaro Limited
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-/dts-v1/;
-#include <st/f1/stm32f1.dtsi>
-#include <st/f1/stm32f103Xb.dtsi>
-#include <st/f1/stm32f103r(8-b)tx-pinctrl.dtsi>
-#include <zephyr/dt-bindings/input/input-event-codes.h>
-
-/ {
-	model = "Iten engineering Valve Node";
-	compatible = "st,stm32f103rb";
-
-	can_loopback0: can_loopback0 {
-		status = "disabled";
-		compatible = "zephyr,can-loopback";
-	};
-
-	chosen {
-		zephyr,console = &usart1;
-		zephyr,shell-uart = &usart1;
-		zephyr,sram = &sram0;
-		zephyr,flash = &flash0;
-		zephyr,canbus = &can1;
-	};
-
-	leds: leds {
-		compatible = "gpio-leds";
-
-		green_led_2: led_2 {
-			gpios = <&gpiob 2 GPIO_ACTIVE_HIGH>;
-			label = "User LD2";
-		};
-	};
-
-	gpio_keys {
-		compatible = "gpio-keys";
-
-		user_button: button {
-			label = "User";
-			gpios = <&gpioc 13 GPIO_ACTIVE_LOW>;
-			zephyr,code = <INPUT_KEY_0>;
-		};
-
-		endstopopen: endstop_open {
-			gpios = <&gpiob 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
-			label = "Endstop Open";
-		};
-
-		endstopclose: endstop_closed {
-			gpios = <&gpiob 5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
-			label = "Endstop Close";
-		};
-
-		statusopen: status_open {
-			gpios = <&gpiob 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
-			label = "Status Open";
-		};
-
-		statusclose: status_close {
-			gpios = <&gpioa 8 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
-			label = "Status Close";
-		};
-	};
-
-	aliases {
-		led0 = &green_led_2;
-		sw0 = &user_button;
-		watchdog0 = &iwdg;
-		die-temp0 = &die_temp;
-		adc-motor-current = &motor_current_channel;
-		adc-vref = &vref_channel;
-	};
-
-};
-
-&clk_lsi {
-	status = "okay";
-};
-
-&clk_hse {
-	clock-frequency = <DT_FREQ_M(8)>;
-	status = "okay";
-};
-
-&pll {
-	mul = <9>;
-	clocks = <&clk_hse>;
-	status = "okay";
-};
-
-&rcc {
-	clocks = <&pll>;
-	clock-frequency = <DT_FREQ_M(72)>;
-	ahb-prescaler = <1>;
-	apb1-prescaler = <2>;
-	apb2-prescaler = <1>;
-	adc-prescaler = <6>;
-};
-
-&usart1 {
-	pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
-	pinctrl-names = "default";
-	status = "okay";
-	current-speed = <115200>;
-};
-
-&usart2 {
-	pinctrl-0 = <&usart2_tx_pa2 &usart2_rx_pa3>;
-	current-speed = <9600>;
-	pinctrl-names = "default";
-	status = "okay";
-	modbus0 {
-		compatible = "zephyr,modbus-serial";
-		status = "okay";
-	};
-};
-
-&usart3 {
-	pinctrl-0 = <&usart3_tx_pb10 &usart3_rx_pb11>;
-	current-speed = <115200>;
-	pinctrl-names = "default";
-};
-
-&i2c1 {
-	pinctrl-0 = <&i2c1_scl_remap1_pb8 &i2c1_sda_remap1_pb9>;
-	pinctrl-names = "default";
-	status = "okay";
-	clock-frequency = <I2C_BITRATE_FAST>;
-};
-
-&iwdg {
-	status = "okay";
-};
-
-&rtc {
-	clocks = <&rcc STM32_CLOCK_BUS_APB1 0x10000000>,
-		   <&rcc STM32_SRC_LSI RTC_SEL(2)>;
-	status = "okay";
-};
-
-&adc1 {
-	pinctrl-0 = <&adc_pb1_pins>;
-	pinctrl-names = "default";
-	status = "okay";
-
-	#address-cells = <1>;
-	#size-cells = <0>;
-
-	motor_current_channel: channel@9 {
-		reg = <0x9>;
-		zephyr,gain = "ADC_GAIN_1";
-		zephyr,reference = "ADC_REF_VDD_1";
-		zephyr,acquisition-time = <49159>;
-		zephyr,resolution = <12>;
-	};
-
-	vref_channel: channel@11 { /* 17 dezimal = 11 hex */
-		reg = <0x11>;
-		zephyr,gain = "ADC_GAIN_1";
-		zephyr,reference = "ADC_REF_VDD_1";
-		zephyr,acquisition-time = <49159>;
-		zephyr,resolution = <12>;
-	};
-};
-
-&die_temp {
-	status = "okay";
-};
-
-&dma1 {
-	status = "okay";
-};
-
-&flash0 {
-	partitions {
-		compatible = "fixed-partitions";
-		#address-cells = <1>;
-		#size-cells = <1>;
-
-		storage_partition: partition@1f800 {
-			label = "storage";
-			reg = <0x0001f800 DT_SIZE_K(2)>;
-		};
-	};
-};
-
-&can1 {
-	pinctrl-0 = <&can_rx_pa11 &can_tx_pa12>;
-	pinctrl-names = "default";
-	status= "okay";
-	bitrate = <125000>;
-};
-
-&exti {
-	status = "okay";
-};
-
-&pinctrl {
-	adc_pb1_pins: adc_pb1_pins {
-		pinmux = <STM32F1_PINMUX('B', 1, ANALOG, NO_REMAP)>;
-	};
-};

software/boards/iten/valve_node/valve_node_defconfig

@@ -1,31 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-
-# enable uart driver
-CONFIG_SERIAL=y
-# enable console
-CONFIG_CONSOLE=y
-
-# enable GPIO
-CONFIG_GPIO=y
-
-# modbus config
-CONFIG_UART_INTERRUPT_DRIVEN=y
-CONFIG_UART_LINE_CTRL=n
-CONFIG_MODBUS=y
-CONFIG_MODBUS_ROLE_CLIENT=y
-
-# can config
-CONFIG_CAN=y
-CONFIG_CAN_INIT_PRIORITY=80
-#CONFIG_CAN_MAX_FILTER=5
-CONFIG_CAN_ACCEPT_RTR=y
-
-# settings
-CONFIG_FLASH=y
-CONFIG_FLASH_MAP=y
-CONFIG_SETTINGS=y
-CONFIG_SETTINGS_RUNTIME=y
-CONFIG_NVS=y
-CONFIG_SETTINGS_NVS=y
-CONFIG_HEAP_MEM_POOL_SIZE=256
-CONFIG_MPU_ALLOW_FLASH_WRITE=y

software/lib/canbus.c

@@ -1,286 +0,0 @@
-#include "canbus.h"
-#include <zephyr/logging/log.h>
-#include <zephyr/kernel.h>
-#include <zephyr/sys/byteorder.h>
-#include <zephyr/drivers/can.h>
-#include <stdlib.h>
-
-#ifdef CONFIG_HAS_MODBUS_WATERLEVEL_SENSOR
-#include "waterlevel_sensor.h"
-#endif // CONFIG_HAS_MODBUS_WATERLEVEL_SENSOR
-
-#ifdef CONFIG_HAS_VALVE
-#include "valve.h"
-#endif // CONFIG_HAS_VALVE
-
-const struct device *const can_dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_canbus));
-
-LOG_MODULE_REGISTER(canbus, CONFIG_LOG_CAN_LEVEL);
-
-K_MSGQ_DEFINE(canbus_msgq, sizeof(struct can_frame), CANBUS_RX_MSGQ_SIZE, 4);
-K_THREAD_STACK_DEFINE(canbus_rx_stack, CANBUS_RX_THREAD_STACK_SIZE);
-
-uint8_t node_id = 0; // Default node ID, can be set later
-uint8_t can_msg_id = 0;
-
-k_tid_t canbus_rx_thread_id;
-struct k_thread canbus_rx_thread_data;
-
-int canbus_rx_filter_id = -1;
-
-void canbus_rx_callback(const struct device *dev, struct can_frame *frame, void *user_data)
-{
-    int rc;
-    ARG_UNUSED(dev);
-    ARG_UNUSED(user_data);
-
-    if (frame->id >> 8 != node_id) // Check if the frame ID matches the node ID
-    {
-        LOG_DBG("Received CAN frame with ID %d, but it does not match node ID %d", frame->id >> 8, node_id);
-        return; // Ignore frames that do not match the node ID
-    }
-
-    // Process the received CAN frame
-    rc = k_msgq_put(&canbus_msgq, frame, K_NO_WAIT);
-    if (rc != 0)
-    {
-        LOG_ERR("Failed to put CAN frame into message queue: %d", rc);
-    }
-}
-
-void canbus_thread(void *arg1, void *arg2, void *arg3)
-{
-    ARG_UNUSED(arg1);
-    ARG_UNUSED(arg2);
-    ARG_UNUSED(arg3);
-
-    LOG_INF("CAN bus thread started");
-
-    // Main loop for CAN bus operations
-    while (1)
-    {
-        int rc;
-        struct can_frame frame;
-        k_msgq_get(&canbus_msgq, &frame, K_FOREVER); // Wait for a message from the queue
-        LOG_DBG("Received CAN frame with ID: 0x%02x, DLC: %d, RTR: %d",
-                frame.id, frame.dlc, (uint8_t)(frame.flags & CAN_FRAME_RTR));
-        LOG_HEXDUMP_DBG(frame.data, frame.dlc, "CAN frame data");
-        uint8_t reg = frame.id & 0xFF;               // Extract register from the frame ID
-        bool is_rtr = (frame.flags & CAN_FRAME_RTR) != 0; // Check if it's a remote transmission request
-        switch (reg)
-        {
-#ifdef CONFIG_HAS_MODBUS_WATERLEVEL_SENSOR
-        case CANBUS_REG_WATERLEVEL_LEVEL:
-        case CANBUS_REG_WATERLEVEL_ZERO_POINT:
-        case CANBUS_REG_WATERLEVEL_MAX_POINT:
-            waterlevel_command_t command;
-            command.cmd = is_rtr ? WATERLEVEL_CMD_GET : WATERLEVEL_CMD_SET; // Determine command type based on RTR
-            command.reg = reg;                                              // Set the register ID
-            int16_t value = 0; // Initialize value to 0
-            if (!is_rtr) // If it's not a remote request, extract the value from the frame data
-            {
-                if (frame.dlc < sizeof(command.data))
-                {                    LOG_ERR("Received frame with insufficient data length: %d", frame.dlc);
-                    continue; // Skip processing if data length is insufficient
-                }
-                value = sys_be16_to_cpu(*(uint16_t *)frame.data); // Convert data from big-endian to host byte order
-                command.data = value; // Set the data field
-                LOG_DBG("Setting command data to: %d", value);
-            }
-            extern struct k_msgq waterlevel_sensor_msgq;                    // Declare the water level sensor message queue
-            k_msgq_put(&waterlevel_sensor_msgq, &command, K_NO_WAIT);
-            break;
-#endif // CONFIG_HAS_MODBUS_WATERLEVEL_SENSOR
-#ifdef CONFIG_HAS_VALVE
-        case CANBUS_REG_VALVE_STATUS:
-        case CANBUS_REG_VALVE_OPERATION:
-        if (is_rtr)
-            {
-                LOG_DBG("Received remote request for valve status or operation");
-                if (reg == CANBUS_REG_VALVE_STATUS)
-                {
-                    valve_send_status(); // Send the current valve status
-                }
-                else if (reg == CANBUS_REG_VALVE_OPERATION)
-                {
-                    valve_send_operation(); // Send the current valve operation state
-                } else {
-                    LOG_ERR("Unknown valve register: 0x%02x", reg);
-                    continue; // Skip processing if the register is unknown
-                }
-            }
-            else
-            {
-                LOG_ERR("Received CAN frame with data for valve status or operation, but RTR is not set");
-                continue; // Skip processing if RTR is not set for valve status or operation
-            }
-            break;
-        case CANBUS_REG_VALVE_COMMAND:
-        {
-            if (is_rtr) {
-                LOG_ERR("Received remote request for valve command, but this is not supported");
-                continue; // Skip processing if RTR is set for valve command
-            } else {
-                // Extract the command from the frame data
-                if (frame.dlc < sizeof(uint8_t)) {
-                    LOG_ERR("Received frame with insufficient data length for valve command: %d", frame.dlc);
-                    continue; // Skip processing if data length is insufficient
-                }
-                uint8_t command = frame.data[0]; // Get the command from the first byte of data
-                LOG_DBG("Received valve command: 0x%02x", command);
-                rc = valve_cmd(command); // Send the command to the valve
-                if (rc < 0) {
-                    LOG_ERR("Failed to send valve command: %d", rc);
-                    continue; // Skip processing if sending the command failed
-                }
-            }
-            break;
-        }
-        default:
-            LOG_DBG("Received CAN frame with unknown register: 0x%02x", reg);
-            break;
-        }
-        #endif // CONFIG_HAS_VALVE
-    }
-}
-
-int canbus_init(void)
-{
-    int rc = 0;
-
-    if (!device_is_ready(can_dev))
-    {
-        LOG_ERR("CAN device %s is not ready", can_dev->name);
-        return -ENODEV;
-    }
-
-#ifdef CONFIG_LOOPBACK_MODE
-    rc = can_set_mode(can_dev, CAN_MODE_LOOPBACK);
-    if (rc != 0)
-    {
-        LOG_ERR("Failed to set CAN loopback mode: %d", rc);
-        return rc;
-    }
-#endif
-
-    rc = can_start(can_dev);
-    if (rc != 0)
-    {
-        printf("Error starting CAN controller [%d]", rc);
-        return 0;
-    }
-    LOG_DBG("CAN device %s is ready", can_dev->name);
-    // Initialize the CAN RX thread
-    canbus_rx_thread_id = k_thread_create(&canbus_rx_thread_data, canbus_rx_stack,
-                                          K_THREAD_STACK_SIZEOF(canbus_rx_stack), canbus_thread,
-                                          NULL, NULL, NULL,
-                                          CANBUS_RX_THREAD_PRIORITY, 0, K_NO_WAIT);
-    k_thread_name_set(canbus_rx_thread_id, "canbus_rx");
-
-    const struct can_filter filter = {
-        .id = node_id << 8, // Standard ID with node ID in the first byte
-        .mask = 0x700,      // Mask to match the first byte of the ID
-        .flags = 0,         // No special flags
-    };
-    canbus_rx_filter_id = can_add_rx_filter(can_dev, canbus_rx_callback, NULL, &filter);
-    LOG_DBG("CAN RX filter added for node ID %d", canbus_rx_filter_id);
-    return 0;
-}
-
-void canbus_tx8_callback(const struct device *dev, int error, void *user_data)
-{
-    ARG_UNUSED(dev);
-    uint8_t frame_id = *(uint8_t *)user_data; // Retrieve the frame ID from user data
-
-    if (error != 0)
-    {
-        LOG_ERR("CAN transmission error. Error code: %d, Frame ID: %d", error, frame_id);
-    }
-    else
-    {
-        LOG_DBG("CAN message with Frame ID %d sent successfully", frame_id);
-    }
-    free(user_data); // Free the allocated memory for frame ID
-}
-
-int canbus_send8(uint16_t reg, uint8_t value)
-{
-    int rc = 0;
-    struct can_frame frame = {
-        .id = (node_id << 8) | reg, // Standard ID with node ID in the first byte
-        .dlc = sizeof(value),        // Data Length Code (DLC)
-    };
-    frame.data[0] = value; // Set the value in the first byte of the data
-    uint8_t *frame_id = malloc(sizeof(uint8_t)); // Allocate memory for frame ID
-    LOG_DBG("Preparing to send 8-bit value 0x%02x to register 0x%02x on node %d", value, reg, node_id);
-    if (frame_id == NULL)
-    {
-        LOG_ERR("Failed to allocate memory for frame ID");
-        return -ENOMEM; // Not enough memory
-    }
-    *frame_id = can_msg_id++; // Increment message ID for uniqueness
-    LOG_DBG("Using frame ID: %d", *frame_id);
-    rc = can_send(can_dev, &frame, CANBUS_TX_TIMEOUT, canbus_tx8_callback, frame_id);
-    // Send the CAN frame with a timeout and callback
-    if (rc != 0)
-    {
-        LOG_ERR("Failed to queue CAN frame: %d", rc);
-        free(frame_id); // Free the allocated memory for frame ID
-        return rc;
-    }
-    return 0;
-}
-
-void canbus_tx16_callback(const struct device *dev, int error, void *user_data)
-{
-    ARG_UNUSED(dev);
-    uint8_t frame_id = *(uint8_t *)user_data; // Retrieve the frame ID from user data
-
-    if (error != 0)
-    {
-        LOG_ERR("CAN transmission error. Error code: %d, Frame ID: %d", error, frame_id);
-    }
-    else
-    {
-        LOG_DBG("CAN message with Frame ID %d sent successfully", frame_id);
-    }
-    free(user_data); // Free the allocated memory for frame ID
-}
-
-int canbus_send16(uint16_t reg, uint16_t value)
-{
-    int rc = 0;
-    union data_type
-    {
-        int16_t value;
-        uint8_t bytes[2];
-    } data;
-    data.value = sys_cpu_to_be16(value); // Convert value to big-endian format
-
-    struct can_frame frame = {
-        .id = (node_id << 8) | reg, // Standard ID with node ID in the first byte
-        .dlc = sizeof(data),        // Data Length Code (DLC)
-    };
-    memcpy(frame.data, data.bytes, sizeof(data)); // Copy data into the frame
-    uint8_t *frame_id = malloc(sizeof(uint8_t));  // Allocate memory for frame ID
-    LOG_DBG("Preparing to send 16-bit value 0x%04x to register 0x%02x on node %d", value, reg, node_id);
-    if (frame_id == NULL)
-    {
-        LOG_ERR("Failed to allocate memory for frame ID");
-        return -ENOMEM; // Not enough memory
-    }
-    *frame_id = can_msg_id++; // Increment message ID for uniqueness
-    LOG_DBG("Using frame ID: %d", *frame_id);
-    rc = can_send(can_dev, &frame, CANBUS_TX_TIMEOUT, canbus_tx16_callback, frame_id);
-    // Send the CAN frame with a timeout and callback
-    if (rc != 0)
-    {
-        LOG_ERR("Failed to queue CAN frame: %d", rc);
-        free(frame_id); // Free the allocated memory for frame ID
-        return rc;
-    }
-
-    LOG_DBG("Queued 16-bit value 0x%04x to register 0x%02x on node %d, frame ID: %d",
-            value, reg, node_id, *frame_id);
-    return 0;
-}

software/lib/canbus.h

@@ -1,16 +0,0 @@
-#ifndef __CANBUS_H__
-#define __CANBUS_H__
-
-#include <stdint.h>
-#include "canbus_registers.h"
-
-#define CANBUS_RX_THREAD_STACK_SIZE (512) // Stack size for the CAN RX thread
-#define CANBUS_RX_THREAD_PRIORITY (5) // Priority for the CAN RX thread
-#define CANBUS_RX_MSGQ_SIZE (5) // Size of the message queue for CAN RX thread
-#define CANBUS_TX_TIMEOUT K_MSEC(100) // Timeout for sending CAN messages in milliseconds
-
-int canbus_init(void);
-int canbus_send8(uint16_t reg, uint8_t value);
-int canbus_send16(uint16_t reg, uint16_t value);
-
-#endif // __CANBUS_H__

software/lib/canbus_registers.h

@@ -1,42 +0,0 @@
-#ifndef __CANBUS_REGISTERS_H__
-#define __CANBUS_REGISTERS_H__
-
-enum canbus_registers {
-    CANBUS_REG_REBOOT = 0x00,
-    CANBUS_REG_STATE = 0x01,
-    CANBUS_REG_ERROR = 0x02,
-
-    CANBUS_REG_VALVE_STATUS = 0x10,
-    CANBUS_REG_VALVE_OPERATION = 0x11,
-    CANBUS_REG_VALVE_COMMAND = 0x12,
-
-    CANBUS_REG_WATERLEVEL_STATE = 0x20,
-    CANBUS_REG_WATERLEVEL_LEVEL = 0x21,
-    CANBUS_REG_WATERLEVEL_ZERO_POINT = 0x22,
-    CANBUS_REG_WATERLEVEL_MAX_POINT = 0x23,
-};
-
-enum valve_status {
-    VALVE_STATE_CLOSED = 0x00,
-    VALVE_STATE_OPEN = 0x01,
-    VALVE_STATE_ERROR = 0x02,
-    VALVE_STATE_UNKNOWN = 0x03,
-};
-
-enum valve_operation_state {
-    VALVE_OPERATION_IDLE = 0x00,
-    VALVE_OPERATION_OPENING = 0x01,
-    VALVE_OPERATION_CLOSING = 0x02,
-};
-
-enum valve_command {
-    VALVE_COMMAND_STOP = 0x00,
-    VALVE_COMMAND_OPEN = 0x01,
-    VALVE_COMMAND_CLOSE = 0x02,
-};
-
-enum waterlevel_state {
-    WATERLEVEL_STATE_OK = 0x00,
-    WATERLEVEL_STATE_MODBUS_ERROR = 0x02,
-};
-#endif // __CANBUS_REGISTERS_H__

software/lib/valve.c

@@ -1,163 +0,0 @@
-#include <zephyr/kernel.h>
-#include <zephyr/logging/log.h>
-
-#include "canbus.h"
-#include "canbus_registers.h"
-#include "valve.h"
-
-LOG_MODULE_REGISTER(valve, CONFIG_LOG_VALVE_LEVEL);
-
-K_THREAD_STACK_DEFINE(valve_thread_stack, VALVE_THREAD_STACK_SIZE);
-K_MSGQ_DEFINE(valve_msgq, sizeof(int), VALVE_MSGQ_SIZE, 4);
-
-k_tid_t valve_thread_id;
-struct k_thread valve_thread_data;
-
-valve_status_t valve_status_data = {
-    .valve_state = VALVE_STATE_UNKNOWN,
-    .valve_operation = VALVE_OPERATION_IDLE,
-};
-
-int valve_start_thread(void)
-{
-    int rc;
-
-    // Initialize the valve
-    rc = valve_init();
-    if (rc < 0)
-    {
-        LOG_ERR("Failed to initialize valve: %d", rc);
-        return rc;
-    }
-
-    // Create the valve thread
-    valve_thread_id = k_thread_create(&valve_thread_data, valve_thread_stack,
-                                      K_THREAD_STACK_SIZEOF(valve_thread_stack),
-                                      (k_thread_entry_t)valve_cmd, NULL, NULL, NULL,
-                                      VALVE_THREAD_PRIORITY, 0, K_NO_WAIT);
-    k_thread_name_set(valve_thread_id, "valve");
-
-    LOG_INF("Valve thread started successfully");
-while (1)
-    {
-        // Wait for commands from the message queue
-        int cmd;
-        rc = k_msgq_get(&valve_msgq, &cmd, VALVE_STATE_INTERVAL);
-        if (rc == 0)
-        {
-            // Process the command
-            rc = valve_cmd(cmd);
-            if (rc < 0)
-            {
-                LOG_ERR("Failed to process valve command: %d", rc);
-            }
-        }
-        else
-        {
-            valve_send_status();    // Send current valve status periodically
-        }
-    }  
-    return 0;
-}
-int valve_init(void)
-{
-    return 0;
-}
-
-int valve_cmd(int cmd)
-{
-    switch (cmd)
-    {
-    case VALVE_COMMAND_OPEN:
-        if (valve_status_data.valve_state != VALVE_STATE_OPEN)
-        {
-            valve_status_data.valve_state = VALVE_STATE_OPEN;
-            valve_status_data.valve_operation = VALVE_OPERATION_OPENING;
-            valve_send_status();    // Send updated status before opening
-            valve_send_operation(); // Send updated operation state before opening
-            k_sleep(VALVE_OPENING_TIME);                              // Simulate opening time
-            valve_status_data.valve_operation = VALVE_OPERATION_IDLE; // Set operation to idle after opening
-            valve_send_status();                                      // Send updated status after opening
-            valve_send_operation();                                   // Send updated operation state after opening
-        }
-        break;
-    case VALVE_COMMAND_CLOSE:
-        if (valve_status_data.valve_state != VALVE_STATE_CLOSED)
-        {
-            valve_status_data.valve_operation = VALVE_OPERATION_CLOSING;
-            valve_send_operation();                                   // Send updated operation state before closing
-            k_sleep(VALVE_CLOSING_TIME);                              // Simulate closing time
-            valve_status_data.valve_state = VALVE_STATE_CLOSED;       // Set valve state to closed after closing
-            valve_status_data.valve_operation = VALVE_OPERATION_IDLE; // Set operation to idle after closing
-            valve_send_status();                                      // Send updated status after closing
-            valve_send_operation();                                   // Send updated operation state after closing
-        }
-        break;
-    case VALVE_COMMAND_STOP:
-        valve_status_data.valve_operation = VALVE_OPERATION_IDLE;
-        break;
-    default:
-        LOG_ERR("Unknown valve command: %d", cmd);
-        return -EINVAL; // Invalid command
-    }
-    return 0;
-}
-
-int valve_send_status(void)
-{
-    int rc = canbus_send8(CANBUS_REG_VALVE_STATUS, valve_status_data.valve_state);
-    if (rc != 0)
-    {
-        LOG_ERR("Failed to send valve status: %d", rc);
-        return rc;
-    }
-    char *state_str;
-    switch (valve_status_data.valve_state)
-    {
-    case VALVE_STATE_CLOSED:
-        state_str = "CLOSED";
-        break;
-    case VALVE_STATE_OPEN:
-        state_str = "OPEN";
-        break;
-    case VALVE_STATE_ERROR:
-        state_str = "ERROR";
-        break;
-    case VALVE_STATE_UNKNOWN:
-        state_str = "UNKNOWN";
-        break;
-    default:
-        state_str = "INVALID";
-        break;
-    }
-    LOG_INF("Valve status sent: %s", state_str);
-    return 0;
-}
-
-int valve_send_operation(void)
-{
-    int rc = canbus_send8(CANBUS_REG_VALVE_OPERATION, valve_status_data.valve_operation);
-    if (rc != 0)
-    {
-        LOG_ERR("Failed to send valve operation: %d", rc);
-        return rc;
-    }
-    char *operation_str;
-    switch (valve_status_data.valve_operation)
-    {
-    case VALVE_OPERATION_IDLE:
-        operation_str = "IDLE";
-        break;
-    case VALVE_OPERATION_OPENING:
-        operation_str = "OPENING";
-        break;
-    case VALVE_OPERATION_CLOSING:
-        operation_str = "CLOSING";
-        break;
-    default:
-        operation_str = "UNKNOWN";
-        break;
-    }
-    LOG_INF("Valve operation sent: %s", operation_str);
-    return 0;
-}

software/lib/valve.h

@@ -1,27 +0,0 @@
-#ifndef __VALVE_H__
-#define __VALVE_H__
-
-#define VALVE_OPENING_TIME K_MSEC(4500)        // Time to open the valve
-#define VALVE_CLOSING_TIME K_MSEC(4500)        // Time to close the valve
-#define VALVE_MAX_OPENING_TIME K_MSEC(5000)    // Maximum time to open the valve
-#define VALVE_MAX_CLOSING_TIME K_MSEC(5000)    // Maximum time to close the valve
-#define VALVE_STATE_INTERVAL K_SECONDS(5 * 60) // Interval to check the valve state
-#define VALVE_THREAD_STACK_SIZE (512)          // Stack size for the valve thread
-#define VALVE_THREAD_PRIORITY (2)              // Priority for the valve thread
-#define VALVE_MSGQ_SIZE (5)                    // Size of the message queue for valve operations
-
-#include <stdint.h>
-#include "canbus_registers.h"
-
-typedef struct {
-    uint8_t valve_state;
-    uint8_t valve_operation;
-} valve_status_t;
-
-int valve_init(void);
-int valve_cmd(int cmd);
-int valve_send_status(void);
-int valve_send_operation(void);
-
-
-#endif // __VALVE_H__

software/lib/waterlevel_sensor.c

@@ -1,383 +0,0 @@
-#include "waterlevel_sensor.h"
-#include <zephyr/kernel.h>
-#include <zephyr/logging/log.h>
-#include <zephyr/modbus/modbus.h>
-#include <stdlib.h>
-#include "canbus.h"
-
-LOG_MODULE_REGISTER(wls, CONFIG_LOG_WATERLEVELSENSOR_LEVEL);
-
-#define MODBUS_NODE DT_COMPAT_GET_ANY_STATUS_OKAY(zephyr_modbus_serial)
-
-struct k_thread waterlevel_sensor_thread_data;
-K_THREAD_STACK_DEFINE(waterlevel_sensor_stack, WATERLEVEL_SENSOR_STACK_SIZE);
-K_MSGQ_DEFINE(waterlevel_sensor_msgq, sizeof(waterlevel_command_t), WATERLEVEL_MESSAGE_QUEUE_SIZE, 4);
-
-static int modbus_client_iface;
-
-volatile static struct
-{
-    int level;   // Water level value
-    int zeropoint; // Minimum value
-    int maxpoint; // Maximum value
-    int factor;  // Factor for unit conversion
-    bool factor_set; // Flag to indicate if factor is set
-} waterlevel_measurement = {
-    .factor_set = false,
-};
-
-struct modbus_iface_param client_param = {
-    .mode = MODBUS_MODE_RTU,
-    .rx_timeout = 50000, // Timeout for receiving data in milliseconds
-    .serial = {
-        .baud = 9600,
-        .parity = UART_CFG_PARITY_NONE,
-    },
-};
-
-static int waterlevel_modbus_init() {
-    const char iface_name[] = {DEVICE_DT_NAME(MODBUS_NODE)};
-    modbus_client_iface = modbus_iface_get_by_name(iface_name);
-    if (modbus_client_iface < 0)
-    {
-        LOG_ERR("Failed to get Modbus interface by name: %s", iface_name);
-        return modbus_client_iface;
-    }
-    LOG_DBG("Initializing modbus client interface: %s", iface_name);
-    return modbus_init_client(modbus_client_iface, client_param);
-}
-
-static int waterlevel_modbus_read(void) {
-    int rc;
-    union 
-    {
-        struct
-        {
-            int16_t unit;      // Unit of measurement (e.g., cm, mm)
-            int16_t decimals;  // Number of decimal places for the measurement
-            int16_t level;     // Water level value
-            int16_t zeropoint; // Zero point for the measurement
-            int16_t maxpoint;  // Maximum point for the measurement
-        };
-        int16_t data[5]; // Data array for holding registers
-    } waterlevel_modbus_data;
-    rc = modbus_read_holding_regs(modbus_client_iface, WATERLEVEL_SENSOR_MODBUS_NODE_ID, 0x0002, waterlevel_modbus_data.data, sizeof(waterlevel_modbus_data.data) / sizeof(waterlevel_modbus_data.data[0]));
-    if (rc < 0)
-    {
-        LOG_ERR("Failed to read holding registers, node <%d>, returncode: %d", WATERLEVEL_SENSOR_MODBUS_NODE_ID, rc);
-        return rc;
-    }
-
-    LOG_DBG("Got values. Unit: %d, Decimals: %d, Level: %d, Zero Point: %d, Max Point: %d", 
-            waterlevel_modbus_data.unit, 
-            waterlevel_modbus_data.decimals, 
-            waterlevel_modbus_data.level, 
-            waterlevel_modbus_data.zeropoint, 
-            waterlevel_modbus_data.maxpoint);
-
-    LOG_HEXDUMP_DBG(waterlevel_modbus_data.data, sizeof(waterlevel_modbus_data.data), "Waterlevel Sensor Holding Registers Data");
-           
-    switch (waterlevel_modbus_data.unit)
-    {
-    case 1: // cm
-        waterlevel_measurement.factor = 10;
-        break;
-    case 2: // mm
-        waterlevel_measurement.factor = 1;
-        break;
-    default:
-        LOG_ERR("Unknown unit: %d", waterlevel_modbus_data.unit);
-        waterlevel_measurement.factor_set = false;
-        return -EINVAL;
-    }
-    switch (waterlevel_modbus_data.decimals)
-    {
-    case 0: // no decimals
-        waterlevel_measurement.factor /= 1;
-        break;
-    case 1: // one decimal
-        waterlevel_measurement.factor /= 10;
-        break;
-    case 2: // two decimals
-        waterlevel_measurement.factor /= 100;
-        break;
-    default:
-        LOG_ERR("Unknown decimals: %d", waterlevel_modbus_data.decimals);
-        waterlevel_measurement.factor_set = false;
-        return -EINVAL;
-    }
-    waterlevel_measurement.factor_set = true;
-    waterlevel_measurement.level = waterlevel_modbus_data.level * waterlevel_measurement.factor;
-    waterlevel_measurement.zeropoint = waterlevel_modbus_data.zeropoint * waterlevel_measurement.factor;
-    waterlevel_measurement.maxpoint = waterlevel_modbus_data.maxpoint * waterlevel_measurement.factor;
-    
-    LOG_DBG("Water level: %dmm, zero point: %dmm, maximum point: %dmm", 
-            waterlevel_measurement.level, 
-            waterlevel_measurement.zeropoint, 
-            waterlevel_measurement.maxpoint);
-    LOG_HEXDUMP_DBG(waterlevel_modbus_data.data, sizeof(waterlevel_modbus_data.data), "Waterlevel Sensor Holding Registers Data");
-    return 0;
-}
-
-static int waterlevel_send_level(void) {
-    if (!waterlevel_measurement.factor_set) {
-        LOG_ERR("Factor not set, cannot send water level");
-        return -EINVAL;
-    }
-
-    LOG_INF("Sending water level: %dmm", waterlevel_measurement.level);
-    canbus_send16(CANBUS_REG_WATERLEVEL_LEVEL, waterlevel_measurement.level);
-    return 0;
-}
-
-static int waterlevel_send_zero_point(void) {
-    if (!waterlevel_measurement.factor_set) {
-        LOG_ERR("Factor not set, cannot send zero point");
-        return -EINVAL;
-    }
-
-    LOG_INF("Sending water zero point: %dmm", waterlevel_measurement.zeropoint);
-    canbus_send16(CANBUS_REG_WATERLEVEL_ZERO_POINT, waterlevel_measurement.zeropoint);
-    return 0;
-}
-
-static int waterlevel_send_max_point(void) {
-    if (!waterlevel_measurement.factor_set) {
-        LOG_ERR("Factor not set, cannot send maximum point");
-        return -EINVAL;
-    }
-
-    LOG_INF("Sending water maximum point: %dmm", waterlevel_measurement.maxpoint);
-    canbus_send16(CANBUS_REG_WATERLEVEL_MAX_POINT, waterlevel_measurement.maxpoint);
-    return 0;
-}
-
-static int waterlevel_set_zero_point(int zeropoint) {
-    if (!waterlevel_measurement.factor_set) {
-        LOG_ERR("Factor not set, cannot set zero point");
-        return -EINVAL;
-    }
-
-    int16_t zeropoint_modbus = zeropoint / waterlevel_measurement.factor;
-    int rc = modbus_write_holding_regs(modbus_client_iface, WATERLEVEL_SENSOR_MODBUS_NODE_ID, 0x0005, &zeropoint_modbus, 1);
-    if (rc < 0) {
-        LOG_ERR("Failed to write zero point: %d", rc);
-        return rc;
-    }
-
-    waterlevel_measurement.zeropoint = zeropoint; // Update the local measurement structure    
-    LOG_INF("Zero point set to: %dmm", waterlevel_measurement.zeropoint);
-    rc = waterlevel_send_zero_point();
-    if (rc < 0) {
-        LOG_ERR("Failed to send zero point: %d", rc);
-        return rc;
-    }
-    return 0;
-}
-
-static int waterlevel_set_max_point(int maxpoint) {
-    if (!waterlevel_measurement.factor_set) {
-        LOG_ERR("Factor not set, cannot set maximum point");
-        return -EINVAL;
-    }
-
-    int16_t maxpoint_modbus = maxpoint / waterlevel_measurement.factor;
-    int rc = modbus_write_holding_regs(modbus_client_iface, WATERLEVEL_SENSOR_MODBUS_NODE_ID, 0x0006, &maxpoint_modbus, 1);
-    if (rc < 0) {
-        LOG_ERR("Failed to write maximum point: %d", rc);
-        return rc;
-    }
-
-    waterlevel_measurement.maxpoint = maxpoint; // Update the local measurement structure
-    LOG_INF("Maximum point set to: %dmm", waterlevel_measurement.maxpoint);
-    rc = waterlevel_send_max_point();
-    if (rc < 0) {
-        LOG_ERR("Failed to send maximum point: %d", rc);
-        return rc;
-    }
-    return 0;
-}
-
-void waterlevel_sensor_thread(void *arg1, void *arg2, void *arg3)
-{
-    ARG_UNUSED(arg1);
-    ARG_UNUSED(arg2);
-    ARG_UNUSED(arg3);
-
-    // Initialize the Modbus client
-    int rc = waterlevel_modbus_init();
-    if (rc < 0)
-    {
-        LOG_ERR("Failed to initialize Modbus client: %d", rc);
-        return;
-    }
-
-    rc = waterlevel_modbus_read();
-    if (rc < 0) {
-        LOG_ERR("Failed to read initial water level: %d", rc);  
-        return;
-    }
-    waterlevel_send_level();
-    waterlevel_send_zero_point();
-    waterlevel_send_max_point();
-
-    // Initialize the last transmission time and level
-    // Use k_uptime_get_32() to get the current uptime in milliseconds
-    // and store the initial water level measurement.
-    // This will be used to determine when to send updates.
-
-    uint32_t last_transmission_time_ms = k_uptime_get_32();
-    int32_t last_transmission_level = waterlevel_measurement.level;
-
-    while (1)
-    {     
-        uint32_t current_time_ms = k_uptime_get_32();
-        uint32_t delta_time = current_time_ms-last_transmission_time_ms;
-        waterlevel_command_t command;
-
-        rc = waterlevel_modbus_read();
-        if (rc < 0)
-        {
-            LOG_ERR("Failed to read water level: %d", rc);
-            continue;
-        }
-
-        if (delta_time >= WATERLEVEL_SENSOR_MAX_UPDATE_INTERVAL_MS ||
-            abs(waterlevel_measurement.level - last_transmission_level) >= WATERLEVEL_SENSOR_MIN_DELTA) {
-            rc = waterlevel_send_level();
-            if (rc < 0) {
-                LOG_ERR("Failed to send water level: %d", rc);
-            } else {
-                last_transmission_time_ms = current_time_ms;
-                last_transmission_level = waterlevel_measurement.level;
-            }
-        }
-
-        while (k_msgq_get(&waterlevel_sensor_msgq, &command, K_NO_WAIT) == 0)
-        {
-            switch(command.cmd)
-            {
-                case WATERLEVEL_CMD_SET:
-                    switch (command.reg)
-                    {
-                        case CANBUS_REG_WATERLEVEL_ZERO_POINT: // Set zero point
-                            rc = waterlevel_set_zero_point(command.data);
-                            if (rc < 0) {
-                                LOG_ERR("Failed to set zero point: %d", rc);
-                            }
-                            break;
-                        case CANBUS_REG_WATERLEVEL_MAX_POINT: // Set maximum point
-                            rc = waterlevel_set_max_point(command.data);
-                            if (rc < 0) {
-                                LOG_ERR("Failed to set maximum point: %d", rc);
-                            }
-                            break;
-                        default:
-                            LOG_ERR("Unknown register for SET command: 0x%02X", command.reg);
-                            break;
-                    }
-                    break;
-                case WATERLEVEL_CMD_GET:
-                    switch (command.reg)
-                    {
-                        case CANBUS_REG_WATERLEVEL_LEVEL: // Get water level
-                            waterlevel_send_level();
-                            break;
-                        case CANBUS_REG_WATERLEVEL_ZERO_POINT: // Get zero point
-                            waterlevel_send_zero_point();
-                            break;
-                        case CANBUS_REG_WATERLEVEL_MAX_POINT: // Get maximum point
-                            waterlevel_send_max_point();
-                            break;
-                        default:
-                            LOG_ERR("Unknown register for GET command: 0x%02X", command.reg);
-                            break;
-                    }
-                    break;
-                default:
-                    LOG_ERR("Unknown command type: %d", command.cmd);
-                    break;
-            }
-        }   
-    }
-}
-
-int waterlevel_sensor_start_thread(void)
-{
-    k_tid_t waterlevel_sensor_thread_id;
-
-    // Start the thread
-    waterlevel_sensor_thread_id = k_thread_create(&waterlevel_sensor_thread_data, waterlevel_sensor_stack,
-                    K_THREAD_STACK_SIZEOF(waterlevel_sensor_stack), waterlevel_sensor_thread,
-                    NULL, NULL, NULL,
-                    WATERLEVEL_SENSOR_THREAD_PRIORITY, 0, K_NO_WAIT);
-
-    if (waterlevel_sensor_thread_id == NULL)
-    {
-        LOG_ERR("Failed to create water level sensor thread");
-        return -ENOMEM;
-    }
-    k_thread_name_set(waterlevel_sensor_thread_id, "waterlevel_sensor");
-
-    LOG_INF("Water level sensor thread started successfully");
-    return 0;
-}
-
-#ifdef CONFIG_SHELL
-#include <zephyr/shell/shell.h>
-
-void waterlevel_set_zero_point_shell(const struct shell *shell, size_t argc, char **argv) {
-    if (argc != 2) {
-        shell_error(shell, "Usage: waterlevel_sensor set_zero_point <zeropoint>");
-        return;
-    }
-
-    int zeropoint = atoi(argv[1]);
-    int rc = waterlevel_set_zero_point(zeropoint);
-    if (rc < 0) {
-        shell_error(shell, "Failed to set zero point: %d", rc);
-    } else {
-        shell_print(shell, "Zero point set to: %dmm", zeropoint);
-    }
-}
-
-void waterlevel_set_max_point_shell(const struct shell *shell, size_t argc, char **argv) {
-    if (argc != 2) {
-        shell_error(shell, "Usage: waterlevel_sensor set_max_point <maxpoint>");
-        return;
-    }
-
-    int maxpoint = atoi(argv[1]);
-    int rc = waterlevel_set_max_point(maxpoint);
-    if (rc < 0) {
-        shell_error(shell, "Failed to set maximum point: %d", rc);
-    } else {
-        shell_print(shell, "Maximum point set to: %dmm", maxpoint);
-    }
-}
-
-void waterlevel_sensor_print_shell(const struct shell *shell, size_t argc, char **argv) {
-    ARG_UNUSED(argc);
-    ARG_UNUSED(argv);
-
-    waterlevel_modbus_read();
-    if (!waterlevel_measurement.factor_set) {
-        shell_error(shell, "Factor not set, cannot print water level");
-        return;
-    }
-
-    shell_print(shell, "Current water level: %4dmm", waterlevel_measurement.level);
-    shell_print(shell, "Zero point:          %4dmm", waterlevel_measurement.zeropoint);
-    shell_print(shell, "Maximum point:       %4dmm", waterlevel_measurement.maxpoint);
-}
-
-// Define the shell commands for the water level sensor
-SHELL_STATIC_SUBCMD_SET_CREATE(
-    waterlevel_sensor_cmds,
-    SHELL_CMD(print, NULL, "Print the current water level, zero point, and maximum point", waterlevel_sensor_print_shell),
-    SHELL_CMD(setzero, NULL, "Set the zero point for the water level sensor", waterlevel_set_zero_point_shell),
-    SHELL_CMD(setmax, NULL, "Set the maximum point for the water level sensor", waterlevel_set_max_point_shell),
-    SHELL_SUBCMD_SET_END);
-
-SHELL_CMD_REGISTER(wls, &waterlevel_sensor_cmds, "Water level sensor commands", NULL);
-#endif // CONFIG_SHELL

software/lib/waterlevel_sensor.h

@@ -1,27 +0,0 @@
-#ifndef __WATERLEVEL_SENSOR_H__
-#define __WATERLEVEL_SENSOR_H__
-
-#define WATERLEVEL_SENSOR_STACK_SIZE (512)
-#define WATERLEVEL_SENSOR_THREAD_PRIORITY (2)
-#define WATERLEVEL_MESSAGE_QUEUE_SIZE (5) // Size of the message queue for water level sensor thread
-#define WATERLEVEL_SENSOR_READ_INTERVAL_MS (5000) // Interval for reading the water level sensor in milliseconds
-#define WATERLEVEL_SENSOR_MIN_DELTA (2) // Minimum change in water level to trigger an update
-#define WATERLEVEL_SENSOR_MAX_UPDATE_INTERVAL_MS (600000) // Maximum interval for updating the water level in milliseconds
-
-#define WATERLEVEL_SENSOR_MODBUS_NODE_ID (0x01) // Modbus node ID for the water level sensor
-#define WATERLEVEL_SENSOR_MODBUS_BAUD_RATE (9600) // Baud rate for Modbus communication
-
-#include <inttypes.h>
-
-int waterlevel_sensor_start_thread(void);
-
-typedef struct {
-    uint8_t reg;
-    enum {
-        WATERLEVEL_CMD_SET,
-        WATERLEVEL_CMD_GET,
-    } cmd;
-    int16_t data; // Data to be set
-} waterlevel_command_t;
-
-#endif // __WATERLEVEL_SENSOR_H__

software/modules/fwu/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.13.1)
+include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
+
+project(fwu)
+
+target_sources(app PRIVATE src/fwu.c)
+target_include_directories(app PUBLIC include)

software/modules/fwu/Kconfig

@@ -0,0 +1,5 @@
+config FWU
+    bool "Enable Firmware Update Library"
+    default y
+    help
+      Enable the Firmware Update module.

software/modules/fwu/include/fwu.h

@@ -0,0 +1,10 @@
+#ifndef FWU_H
+#define FWU_H
+
+#include <stdint.h>
+
+void fwu_init(void);
+void fwu_handler(uint16_t addr, uint16_t reg);
+uint16_t fwu_get_last_chunk_crc(void);
+
+#endif // FWU_H

software/modules/fwu/src/fwu.c

@@ -0,0 +1,45 @@
+#include "fwu.h"
+#include <zephyr/kernel.h>
+#include <zephyr/sys/crc.h>
+#include <zephyr/sys/byteorder.h>
+#include <zephyr/logging/log.h>
+
+LOG_MODULE_REGISTER(fwu, LOG_LEVEL_INF);
+
+#define FWU_BUFFER_SIZE 256
+static uint8_t fwu_buffer[FWU_BUFFER_SIZE];
+static uint32_t fwu_chunk_offset = 0;
+static uint16_t fwu_chunk_size = 0;
+static uint16_t fwu_last_chunk_crc = 0;
+
+void fwu_init(void) {}
+
+void fwu_handler(uint16_t addr, uint16_t reg)
+{
+    // This is a simplified handler. In a real scenario, you would have a proper mapping
+    // between register addresses and actions.
+    if (addr == 0x0100) { // FWU_COMMAND
+        if (reg == 1) { LOG_INF("FWU: Chunk at offset %u (size %u) verified.", fwu_chunk_offset, fwu_chunk_size); }
+        else if (reg == 2) { LOG_INF("FWU: Finalize command received. Rebooting (simulated)."); }
+    } else if (addr == 0x0101) { // FWU_CHUNK_OFFSET_LOW
+        fwu_chunk_offset = (fwu_chunk_offset & 0xFFFF0000) | reg;
+    } else if (addr == 0x0102) { // FWU_CHUNK_OFFSET_HIGH
+        fwu_chunk_offset = (fwu_chunk_offset & 0x0000FFFF) | ((uint32_t)reg << 16);
+    } else if (addr == 0x0103) { // FWU_CHUNK_SIZE
+        fwu_chunk_size = (reg > FWU_BUFFER_SIZE) ? FWU_BUFFER_SIZE : reg;
+    } else if (addr >= 0x0180 && addr < (0x0180 + (FWU_BUFFER_SIZE / 2))) {
+        uint16_t index = (addr - 0x0180) * 2;
+        if (index < sizeof(fwu_buffer)) {
+            sys_put_be16(reg, &fwu_buffer[index]);
+            if (index + 2 >= fwu_chunk_size) {
+                fwu_last_chunk_crc = crc16_ccitt(0xffff, fwu_buffer, fwu_chunk_size);
+                LOG_INF("FWU: Chunk received, CRC is 0x%04X", fwu_last_chunk_crc);
+            }
+        }
+    }
+}
+
+uint16_t fwu_get_last_chunk_crc(void)
+{
+    return fwu_last_chunk_crc;
+}

software/modules/modbus_server/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.13.1)
+include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
+
+project(modbus_server)
+
+target_sources(app PRIVATE src/modbus_server.c)
+target_include_directories(app PUBLIC include)

software/modules/modbus_server/Kconfig

@@ -0,0 +1,5 @@
+config MODBUS_SERVER
+    bool "Enable Modbus Server Library"
+    default y
+    help
+      Enable the Modbus Server module.

software/modules/modbus_server/include/modbus_server.h

@@ -0,0 +1,52 @@
+#ifndef MODBUS_SERVER_H
+#define MODBUS_SERVER_H
+
+#include <stdint.h>
+
+/**
+ * @brief Modbus Input Register Addresses.
+ */
+enum {
+	/* Valve Control & Status */
+	REG_INPUT_VALVE_STATE_MOVEMENT        = 0x0000,
+	REG_INPUT_MOTOR_CURRENT_MA            = 0x0001,
+	/* Digital Inputs */
+	REG_INPUT_DIGITAL_INPUTS_STATE        = 0x0020,
+	REG_INPUT_BUTTON_EVENTS               = 0x0021,
+	/* System Config & Status */
+	REG_INPUT_FIRMWARE_VERSION_MAJOR_MINOR = 0x00F0,
+	REG_INPUT_FIRMWARE_VERSION_PATCH      = 0x00F1,
+	REG_INPUT_DEVICE_STATUS               = 0x00F2,
+	REG_INPUT_UPTIME_SECONDS_LOW          = 0x00F3,
+	REG_INPUT_UPTIME_SECONDS_HIGH         = 0x00F4,
+	/* Firmware Update */
+	REG_INPUT_FWU_LAST_CHUNK_CRC          = 0x0100,
+};
+
+/**
+ * @brief Modbus Holding Register Addresses.
+ */
+enum {
+	/* Valve Control */
+	REG_HOLDING_VALVE_COMMAND             = 0x0000,
+	REG_HOLDING_MAX_OPENING_TIME_S        = 0x0001,
+	REG_HOLDING_MAX_CLOSING_TIME_S        = 0x0002,
+	/* Digital Outputs */
+	REG_HOLDING_DIGITAL_OUTPUTS_STATE     = 0x0010,
+	/* System Config */
+	REG_HOLDING_WATCHDOG_TIMEOUT_S        = 0x00F0,
+	REG_HOLDING_DEVICE_RESET              = 0x00F1,
+	/* Firmware Update */
+	REG_HOLDING_FWU_COMMAND               = 0x0100,
+	REG_HOLDING_FWU_CHUNK_OFFSET_LOW      = 0x0101,
+	REG_HOLDING_FWU_CHUNK_OFFSET_HIGH     = 0x0102,
+	REG_HOLDING_FWU_CHUNK_SIZE            = 0x0103,
+	REG_HOLDING_FWU_DATA_BUFFER           = 0x0180,
+};
+
+int modbus_server_init(void);
+int modbus_reconfigure(uint32_t baudrate, uint8_t unit_id);
+uint32_t modbus_get_baudrate(void);
+uint8_t modbus_get_unit_id(void);
+
+#endif // MODBUS_SERVER_H

software/modules/modbus_server/src/modbus_server.c

@@ -0,0 +1,202 @@
+#include <zephyr/kernel.h>
+#include <zephyr/drivers/uart.h>
+#include <zephyr/device.h>
+#include <zephyr/modbus/modbus.h>
+#include <zephyr/logging/log.h>
+#include <zephyr/settings/settings.h>
+#include <zephyr/sys/reboot.h>
+#include "modbus_server.h"
+#include "valve.h"
+#include "fwu.h"
+
+#include <zephyr/usb/usb_device.h>
+
+LOG_MODULE_REGISTER(modbus_server, LOG_LEVEL_INF);
+
+static int modbus_iface;
+static struct modbus_iface_param server_param = {
+	.mode = MODBUS_MODE_RTU,
+	.server = {.user_cb = NULL, .unit_id = 1},
+	.serial = {.baud = 19200, .parity = UART_CFG_PARITY_NONE},
+};
+
+static uint16_t watchdog_timeout_s = 0;
+static struct k_timer watchdog_timer;
+
+static void watchdog_timer_handler(struct k_timer *timer_id)
+{
+	LOG_WRN("Modbus watchdog expired! Closing valve as a fail-safe.");
+	valve_close();
+}
+
+static inline void reset_watchdog(void)
+{
+	if (watchdog_timeout_s > 0)
+	{
+		k_timer_start(&watchdog_timer, K_SECONDS(watchdog_timeout_s), K_NO_WAIT);
+	}
+}
+
+static int holding_reg_rd(uint16_t addr, uint16_t *reg)
+{
+	reset_watchdog();
+	switch (addr)
+	{
+	case REG_HOLDING_MAX_OPENING_TIME_S:
+		*reg = valve_get_max_open_time();
+		break;
+	case REG_HOLDING_MAX_CLOSING_TIME_S:
+		*reg = valve_get_max_close_time();
+		break;
+	case REG_HOLDING_WATCHDOG_TIMEOUT_S:
+		*reg = watchdog_timeout_s;
+		break;
+	default:
+		*reg = 0;
+		break;
+	}
+	return 0;
+}
+
+static int holding_reg_wr(uint16_t addr, uint16_t reg)
+{
+	reset_watchdog();
+	switch (addr)
+	{
+	case REG_HOLDING_VALVE_COMMAND:
+		if (reg == 1)
+		{
+			valve_open();
+		}
+		else if (reg == 2)
+		{
+			valve_close();
+		}
+		else if (reg == 0)
+		{
+			valve_stop();
+		}
+		break;
+	case REG_HOLDING_MAX_OPENING_TIME_S:
+		valve_set_max_open_time(reg);
+		break;
+	case REG_HOLDING_MAX_CLOSING_TIME_S:
+		valve_set_max_close_time(reg);
+		break;
+	case REG_HOLDING_WATCHDOG_TIMEOUT_S:
+		watchdog_timeout_s = reg;
+		if (watchdog_timeout_s > 0)
+		{
+			LOG_INF("Watchdog enabled with %u s timeout.", watchdog_timeout_s);
+			reset_watchdog();
+		}
+		else
+		{
+			LOG_INF("Watchdog disabled.");
+			k_timer_stop(&watchdog_timer);
+		}
+		break;
+	case REG_HOLDING_DEVICE_RESET:
+		if (reg == 1)
+		{
+			LOG_WRN("Modbus reset command received. Rebooting...");
+			sys_reboot(SYS_REBOOT_WARM);
+		}
+		break;
+	default:
+		fwu_handler(addr, reg);
+		break;
+	}
+	return 0;
+}
+
+static int input_reg_rd(uint16_t addr, uint16_t *reg)
+{
+	reset_watchdog();
+	uint32_t uptime_s = k_uptime_get_32() / 1000;
+	switch (addr)
+	{
+	case REG_INPUT_VALVE_STATE_MOVEMENT:
+		*reg = (valve_get_movement() << 8) | (valve_get_state() & 0xFF);
+		break;
+	case REG_INPUT_MOTOR_CURRENT_MA:
+		*reg = valve_get_motor_current();
+		break;
+	case REG_INPUT_UPTIME_SECONDS_LOW:
+		*reg = (uint16_t)(uptime_s & 0xFFFF);
+		break;
+	case REG_INPUT_UPTIME_SECONDS_HIGH:
+		*reg = (uint16_t)(uptime_s >> 16);
+		break;
+	case REG_INPUT_FWU_LAST_CHUNK_CRC:
+		*reg = fwu_get_last_chunk_crc();
+		break;
+	case REG_INPUT_FIRMWARE_VERSION_MAJOR_MINOR:
+		*reg = (0 << 8) | 0;
+		break;
+	case REG_INPUT_FIRMWARE_VERSION_PATCH:
+		*reg = 1;
+		break;
+	default:
+		*reg = 0;
+		break;
+	}
+	return 0;
+}
+
+static struct modbus_user_callbacks mbs_cbs = {
+	.holding_reg_rd = holding_reg_rd,
+	.holding_reg_wr = holding_reg_wr,
+	.input_reg_rd = input_reg_rd,
+};
+
+#define MODBUS_NODE DT_COMPAT_GET_ANY_STATUS_OKAY(zephyr_modbus_serial)
+
+int modbus_server_init(void)
+{
+	k_timer_init(&watchdog_timer, watchdog_timer_handler, NULL);
+	const char iface_name[] = {DEVICE_DT_NAME(MODBUS_NODE)};
+#if DT_NODE_HAS_COMPAT(DT_PARENT(MODBUS_NODE), zephyr_cdc_acm_uart)
+	const struct device *const dev = DEVICE_DT_GET(DT_PARENT(MODBUS_NODE));
+	uint32_t dtr = 0;
+
+	if (!device_is_ready(dev) || usb_enable(NULL))
+	{
+		return 0;
+	}
+
+	while (!dtr)
+	{
+		uart_line_ctrl_get(dev, UART_LINE_CTRL_DTR, &dtr);
+		k_sleep(K_MSEC(100));
+	}
+
+	LOG_INF("Client connected to server on %s", dev->name);
+#endif
+	modbus_iface = modbus_iface_get_by_name(iface_name);
+	if (modbus_iface < 0)
+	{
+		return modbus_iface;
+	}
+	server_param.server.user_cb = &mbs_cbs;
+	return modbus_init_server(modbus_iface, server_param);
+}
+
+int modbus_reconfigure(uint32_t baudrate, uint8_t unit_id)
+{
+	server_param.serial.baud = baudrate;
+	server_param.server.unit_id = unit_id;
+
+	int ret = modbus_init_server(modbus_iface, server_param);
+
+	if (ret == 0)
+	{
+		settings_save_one("modbus/baudrate", &baudrate, sizeof(baudrate));
+		settings_save_one("modbus/unit_id", &unit_id, sizeof(unit_id));
+	}
+
+	return ret;
+}
+
+uint32_t modbus_get_baudrate(void) { return server_param.serial.baud; }
+uint8_t modbus_get_unit_id(void) { return server_param.server.unit_id; }

software/modules/valve/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.13.1)
+include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
+
+project(valve)
+
+target_sources(app PRIVATE src/valve.c)
+target_include_directories(app PUBLIC include)

software/modules/valve/Kconfig

@@ -0,0 +1,5 @@
+config VALVE
+    bool "Enable Valve Library"
+    default y
+    help
+      Enable the Valve module.

software/modules/valve/include/valve.h

@@ -0,0 +1,23 @@
+#ifndef VALVE_H
+#define VALVE_H
+
+#include <stdint.h>
+
+enum valve_state { VALVE_STATE_CLOSED, VALVE_STATE_OPEN };
+enum valve_movement { VALVE_MOVEMENT_IDLE, VALVE_MOVEMENT_OPENING, VALVE_MOVEMENT_CLOSING, VALVE_MOVEMENT_ERROR };
+
+void valve_init(void);
+void valve_open(void);
+void valve_close(void);
+void valve_stop(void);
+
+enum valve_state valve_get_state(void);
+enum valve_movement valve_get_movement(void);
+uint16_t valve_get_motor_current(void);
+
+void valve_set_max_open_time(uint16_t seconds);
+void valve_set_max_close_time(uint16_t seconds);
+uint16_t valve_get_max_open_time(void);
+uint16_t valve_get_max_close_time(void);
+
+#endif // VALVE_H

software/modules/valve/src/valve.c

@@ -0,0 +1,62 @@
+#include "valve.h"
+#include <zephyr/kernel.h>
+#include <zephyr/settings/settings.h>
+#include <zephyr/logging/log.h>
+
+LOG_MODULE_REGISTER(valve, LOG_LEVEL_INF);
+
+static enum valve_state current_state = VALVE_STATE_CLOSED;
+static enum valve_movement current_movement = VALVE_MOVEMENT_IDLE;
+static uint16_t max_opening_time_s = 60;
+static uint16_t max_closing_time_s = 60;
+static struct k_work_delayable valve_work;
+
+static void valve_work_handler(struct k_work *work)
+{
+    if (current_movement == VALVE_MOVEMENT_OPENING) {
+        LOG_INF("Virtual valve finished opening");
+    } else if (current_movement == VALVE_MOVEMENT_CLOSING) {
+        current_state = VALVE_STATE_CLOSED;
+        LOG_INF("Virtual valve finished closing");
+    }
+    current_movement = VALVE_MOVEMENT_IDLE;
+}
+
+void valve_init(void)
+{
+    k_work_init_delayable(&valve_work, valve_work_handler);
+    settings_load_one("valve/max_open_time", &max_opening_time_s, sizeof(max_opening_time_s));
+    settings_load_one("valve/max_close_time", &max_closing_time_s, sizeof(max_closing_time_s));
+}
+
+void valve_open(void)
+{
+    if (current_state == VALVE_STATE_CLOSED) {
+        current_state = VALVE_STATE_OPEN;
+        current_movement = VALVE_MOVEMENT_OPENING;
+        k_work_schedule(&valve_work, K_SECONDS(max_opening_time_s));
+    }
+}
+
+void valve_close(void)
+{
+    if (current_state == VALVE_STATE_OPEN) {
+        current_movement = VALVE_MOVEMENT_CLOSING;
+        k_work_schedule(&valve_work, K_SECONDS(max_closing_time_s));
+    }
+}
+
+void valve_stop(void)
+{
+    k_work_cancel_delayable(&valve_work);
+    current_movement = VALVE_MOVEMENT_IDLE;
+}
+
+enum valve_state valve_get_state(void) { return current_state; }
+enum valve_movement valve_get_movement(void) { return current_movement; }
+uint16_t valve_get_motor_current(void) { return (current_movement != VALVE_MOVEMENT_IDLE) ? 150 : 10; }
+
+void valve_set_max_open_time(uint16_t seconds) { max_opening_time_s = seconds; settings_save_one("valve/max_open_time", &max_opening_time_s, sizeof(max_opening_time_s)); }
+void valve_set_max_close_time(uint16_t seconds) { max_closing_time_s = seconds; settings_save_one("valve/max_close_time", &max_closing_time_s, sizeof(max_closing_time_s)); }
+uint16_t valve_get_max_open_time(void) { return max_opening_time_s; }
+uint16_t valve_get_max_close_time(void) { return max_closing_time_s; }

software/prj.conf

@@ -1,20 +0,0 @@
-CONFIG_HAS_MODBUS_WATERLEVEL_SENSOR=y
-CONFIG_HAS_VALVE=y
-
-CONFIG_LOG=y
-CONFIG_LOG_DEFAULT_LEVEL=3
-# CONFIG_LOG_CAN_LEVEL=4
-# CONFIG_LOG_WATERLEVELSENSOR_LEVEL=4
-# CONFIG_LOG_VALVE_LEVEL=4
-CONFIG_CBPRINTF_FP_SUPPORT=y
-CONFIG_UART_CONSOLE=y # Console on USART1
-
-# CAN loopback mode for testing
-#CONFIG_LOOPBACK_MODE=y
-CONFIG_SHELL=y
-CONFIG_CAN_SHELL=y
-CONFIG_GPIO_SHELL=y
-CONFIG_REBOOT=y
-
-CONFIG_ADC=y
-CONFIG_ADC_STM32=y

software/src/main.c

@@ -1,53 +0,0 @@
-#include <zephyr/logging/log.h>
-#include <zephyr/kernel.h>
-#include <zephyr/sys/byteorder.h>
-#include <zephyr/shell/shell.h>
-#include "canbus.h"
-#include "canbus_registers.h"
-
-#ifdef CONFIG_HAS_MODBUS_WATERLEVEL_SENSOR
-// Include the water level sensor header file when the feature is enabled
-#include "waterlevel_sensor.h"
-#endif // CONFIG_HAS_MODBUS_WATERLEVEL_SENSOR
-
-#ifdef CONFIG_HAS_VALVE
-#include "valve.h"
-#endif // CONFIG_HAS_VALVE
-
-LOG_MODULE_REGISTER(main, CONFIG_LOG_DEFAULT_LEVEL);
-
-int main(void)
-{
-    LOG_INF("Starting main application...");
-    canbus_init();
-    k_sleep(K_MSEC(3000)); // Allow some time for CAN initialization
-#ifdef CONFIG_HAS_MODBUS_WATERLEVEL_SENSOR
-    int rc = waterlevel_sensor_start_thread();
-    if (rc < 0)
-    {
-        LOG_ERR("Failed to start water level sensor thread: %d", rc);
-        return rc;
-    }
-#endif // CONFIG_HAS_MODBUS_WATERLEVEL_SENSOR
-
-    valve_cmd(VALVE_COMMAND_CLOSE); // Ensure the valve is closed at startup
-    
-    LOG_INF("Main application started successfully.");
-    return 0; // Return 0 on success
-}
-
-#ifdef CONFIG_SHELL
-#include <zephyr/shell/shell.h>
-#include <zephyr/sys/reboot.h>
-
-static int reboot_shell_cmd(const struct shell *shell, size_t argc, char **argv)
-{
-    ARG_UNUSED(argc);
-    ARG_UNUSED(argv);
-    shell_print(shell, "Rebooting the node in 1 second...");
-    k_sleep(K_SECONDS(1));
-    sys_reboot(SYS_REBOOT_COLD);
-    return 0;
-}
-SHELL_CMD_REGISTER(reboot, NULL, "Reboot the node", reboot_shell_cmd);
-#endif // CONFIG_SHELL

software/src/main2.c

@@ -1,86 +0,0 @@
-#include <zephyr/kernel.h>
-#include <zephyr/drivers/adc.h>
-#include <zephyr/logging/log.h>
-#include <zephyr/device.h>
-#include <zephyr/devicetree.h>
-#include <stdint.h>
-
-LOG_MODULE_REGISTER(main2, LOG_LEVEL_DBG);
-
-#define MOTOR_ADC_NODE DT_ALIAS(adc_motor_current)
-#define VREF_ADC_NODE  DT_ALIAS(adc_vref)
-
-static const struct device * const adc_dev = DEVICE_DT_GET(DT_PARENT(MOTOR_ADC_NODE));
-static const uint8_t motor_channel_id = DT_REG_ADDR(MOTOR_ADC_NODE);
-static const uint8_t vref_channel_id = DT_REG_ADDR(VREF_ADC_NODE);
-
-int main(void)
-{
-    int err;
-    int16_t adc_raw_value;
-
-    LOG_INF("Starting ADC test with direct register setup...");
-
-    if (!device_is_ready(adc_dev)) {
-        LOG_ERR("ADC device is not ready");
-        return 0;
-    }
-
-    LOG_INF("Manually setting up ADC registers...");
-
-    uint32_t adc_base = DT_REG_ADDR(DT_NODELABEL(adc1));
-
-    volatile uint32_t *ADC_CR2   = (uint32_t *)(adc_base + 0x08);
-    volatile uint32_t *ADC_SMPR1 = (uint32_t *)(adc_base + 0x0C);
-    volatile uint32_t *ADC_SMPR2 = (uint32_t *)(adc_base + 0x10);
-
-    // Schritt 1: Internen VREFINT-Kanal einschalten
-    const uint32_t ADC_CR2_TSVREFE_BIT = 23;
-    *ADC_CR2 |= (1 << ADC_CR2_TSVREFE_BIT);
-    LOG_INF("VREFINT channel enabled via CR2 register.");
-
-    // Schritt 2: Lange Abtastzeiten für Stabilität setzen
-    *ADC_SMPR2 |= (0b111 << (3 * 9));
-    *ADC_SMPR1 |= (0b111 << (3 * (17 - 10)));
-    LOG_INF("Acquisition times set directly in SMPR registers.");
-
-
-    k_busy_wait(10);
-
-
-    while (1) {
-        int32_t motor_raw = 0;
-        int32_t vref_raw = 0;
-        
-        struct adc_sequence sequence = {
-            .buffer      = &adc_raw_value,
-            .buffer_size = sizeof(adc_raw_value),
-            .resolution  = 12,
-        };
-
-        // Motor-Kanal lesen
-        sequence.channels = BIT(motor_channel_id);
-        if (adc_read(adc_dev, &sequence) == 0) {
-            motor_raw = adc_raw_value;
-        }
-
-        // VREF-Kanal lesen
-        sequence.channels = BIT(vref_channel_id);
-        if (adc_read(adc_dev, &sequence) == 0) {
-            vref_raw = adc_raw_value;
-        }
-
-        // VDD-Berechnung mit dem generischen, aber für Sie gut funktionierenden 1200mV-Wert
-        int32_t vdd_mv = (vref_raw > 0) ? (1200 * 4095 / vref_raw) : 0;
-        int32_t motor_mv = 0;
-        
-        if (motor_raw > 0 && vdd_mv > 0) {
-            motor_mv = motor_raw;
-            err = adc_raw_to_millivolts(vdd_mv, ADC_GAIN_1, 12, &motor_mv);
-        }
-        
-        LOG_INF("Motor Raw: %4d, Motor mV: %4d | VDD: %4d mV", motor_raw, motor_mv, vdd_mv);
-        k_sleep(K_MSEC(2000));
-    }
-    return 0;
-}

software/tools/modbus_tool/README.de.md

@@ -0,0 +1,103 @@
+<img src="../../../docs/img/logo.png" alt="Logo" width="100"/>
+
+# Modbus Tool für Bewässerungssystem-Knoten
+
+Dieses Python-Skript bietet eine interaktive Kommandozeilen-Benutzeroberfläche (TUI) zur Steuerung und Überwachung eines Ventil-Knotens des Bewässerungssystems über Modbus RTU.
+
+## Features
+
+- **Interaktive Benutzeroberfläche:** Eine benutzerfreundliche, auf `curses` basierende Oberfläche, die eine einfache Bedienung ermöglicht.
+- **Live-Statusanzeige:** Zeigt tabellarisch und in Echtzeit alle wichtigen Register des Slaves an:
+    - Ventilstatus (Zustand, Bewegung, Motorstrom)
+    - Zustand der digitalen Ein- und Ausgänge
+    - "Clear-on-Read" Taster-Events
+    - Systemkonfiguration (Öffnungs-/Schließzeiten, Watchdog-Timeout)
+    - Gerätestatus (Firmware-Version, Uptime)
+- **Volle Kontrolle:** Ermöglicht das Senden von Befehlen zum Öffnen, Schließen und Stoppen des Ventils sowie zum Umschalten der digitalen Ausgänge.
+- **Konfiguration zur Laufzeit:** Die maximalen Öffnungs-/Schließzeiten und der Watchdog-Timeout können direkt in der Oberfläche geändert werden.
+- **Simulierter Firmware-Upload:** Implementiert den vollständigen, in der Dokumentation beschriebenen Firmware-Update-Prozess. Das Tool sendet eine `firmware.bin`-Datei in Chunks an den Slave und folgt dem CRC-Verifizierungs-Protokoll.
+
+## Installation
+
+### Voraussetzungen
+
+- Python 3.x
+- `pip` (Python Paket-Installer)
+
+### Installation der Abhängigkeiten
+
+Die benötigten Python-Pakete sind in der Datei `requirements.txt` aufgeführt. Sie können auf zwei Arten installiert werden: global oder in einer virtuellen Umgebung (empfohlen).
+
+#### Option 1: Installation mit virtueller Umgebung (empfohlen)
+
+Eine virtuelle Umgebung isoliert die Projekt-Abhängigkeiten von Ihrem globalen Python-System, was Konflikte vermeidet.
+
+1.  **Virtuelle Umgebung erstellen:**
+    Führen Sie im Verzeichnis `software/tools/modbus_tool` den folgenden Befehl aus, um eine Umgebung im Ordner `.venv` zu erstellen:
+    ```bash
+    python3 -m venv .venv
+    ```
+
+2.  **Umgebung aktivieren:**
+    -   **Linux / macOS:**
+        ```bash
+        source .venv/bin/activate
+        ```
+        Ihre Shell-Anzeige sollte sich ändern und `(.venv)` am Anfang zeigen.
+    -   **Windows (cmd.exe):**
+        ```bash
+        .venv\Scripts\activate.bat
+        ```
+    -   **Windows (PowerShell):**
+        ```powershell
+        .venv\Scripts\Activate.ps1
+        ```
+
+3.  **Abhängigkeiten installieren:**
+    Wenn die Umgebung aktiv ist, installieren Sie die Pakete:
+    ```bash
+    pip install -r requirements.txt
+    ```
+
+4.  **Umgebung deaktivieren:**
+    Wenn Sie fertig sind, können Sie die Umgebung mit folgendem Befehl wieder verlassen:
+    ```bash
+    deactivate
+    ```
+
+#### Option 2: Globale Installation (nicht empfohlen)
+
+Wenn Sie keine virtuelle Umgebung verwenden möchten, können Sie die Pakete direkt in Ihrem globalen Python-System installieren.
+
+```bash
+pip install -r requirements.txt
+```
+
+## Verwendung
+
+Stellen Sie sicher, dass das Skript ausführbar ist:
+```bash
+chmod +x modbus_tool.py
+```
+
+Starten Sie das Tool, indem Sie den seriellen Port als Argument übergeben:
+
+```bash
+./modbus_tool.py /dev/ttyACM0
+```
+Ersetzen Sie `/dev/ttyACM0` durch den korrekten Port Ihres Geräts.
+
+### Kommandozeilen-Argumente
+
+- `port`: (Erforderlich) Der serielle Port (z.B. `/dev/ttyACM0` oder `COM3`).
+- `--baud`: Die Baudrate (Standard: `19200`).
+- `--slave-id`: Die Modbus Slave ID des Geräts (Standard: `1`).
+- `--interval`: Das Abfrageintervall für den Status in Sekunden (Standard: `1.0`).
+
+### Bedienung der Oberfläche
+
+- **Navigation:** Verwenden Sie die **Pfeiltasten (↑/↓)**, um zwischen den Menüpunkten zu navigieren.
+- **Auswählen:** Drücken Sie **Enter**, um den ausgewählten Befehl auszuführen.
+- **Werte eingeben:** Bei Aktionen wie "Set Watchdog" werden Sie zur Eingabe eines Wertes aufgefordert. Geben Sie den Wert ein und bestätigen Sie mit **Enter**.
+- **Firmware Update:** Diese Funktion startet den Upload der Datei `firmware.bin` aus dem aktuellen Verzeichnis. Während des Updates wird eine Fortschrittsanzeige dargestellt.
+- **Beenden:** Wählen Sie den Menüpunkt **"Exit"** und drücken Sie **Enter**.

software/tools/modbus_tool/modbus_tool.py

@@ -0,0 +1,330 @@
+#!/usr/bin/env python3
+import argparse
+import threading
+import time
+import sys
+import curses
+import os
+from pymodbus.client import ModbusSerialClient
+from pymodbus.exceptions import ModbusException
+
+# --- Register Definitions ---
+# (omitted for brevity, no changes here)
+REG_INPUT_VALVE_STATE_MOVEMENT = 0x0000
+REG_INPUT_MOTOR_CURRENT_MA = 0x0001
+REG_INPUT_DIGITAL_INPUTS_STATE = 0x0020
+REG_INPUT_BUTTON_EVENTS = 0x0021
+REG_INPUT_FIRMWARE_VERSION_MAJOR_MINOR = 0x00F0
+REG_INPUT_FIRMWARE_VERSION_PATCH = 0x00F1
+REG_INPUT_DEVICE_STATUS = 0x00F2
+REG_INPUT_UPTIME_SECONDS_LOW = 0x00F3
+REG_INPUT_UPTIME_SECONDS_HIGH = 0x00F4
+REG_INPUT_FWU_LAST_CHUNK_CRC = 0x0100
+REG_HOLDING_VALVE_COMMAND = 0x0000
+REG_HOLDING_MAX_OPENING_TIME_S = 0x0001
+REG_HOLDING_MAX_CLOSING_TIME_S = 0x0002
+REG_HOLDING_DIGITAL_OUTPUTS_STATE = 0x0010
+REG_HOLDING_WATCHDOG_TIMEOUT_S = 0x00F0
+REG_HOLDING_DEVICE_RESET = 0x00F1
+REG_HOLDING_FWU_COMMAND = 0x0100
+REG_HOLDING_FWU_CHUNK_OFFSET_LOW = 0x0101
+REG_HOLDING_FWU_CHUNK_OFFSET_HIGH = 0x0102
+REG_HOLDING_FWU_CHUNK_SIZE = 0x0103
+REG_HOLDING_FWU_DATA_BUFFER = 0x0180
+
+
+# --- Global State ---
+stop_event = threading.Event()
+client = None
+status_data = {}
+status_lock = threading.Lock()
+update_status = {"running": False, "message": "", "progress": 0.0}
+update_lock = threading.Lock()
+
+def format_uptime(seconds):
+    if not isinstance(seconds, (int, float)) or seconds < 0: return "N/A"
+    if seconds == 0: return "0s"
+    days, rem = divmod(seconds, 86400); hours, rem = divmod(rem, 3600); minutes, secs = divmod(rem, 60)
+    parts = []
+    if days > 0: parts.append(f"{int(days)}d")
+    if hours > 0: parts.append(f"{int(hours)}h")
+    if minutes > 0: parts.append(f"{int(minutes)}m")
+    if secs > 0 or not parts: parts.append(f"{int(secs)}s")
+    return " ".join(parts)
+
+def poll_status(slave_id, interval):
+    global status_data
+    reconnect_attempts = 0
+    max_reconnect_attempts = 5
+    reconnect_delay = 1 # seconds
+
+    while not stop_event.is_set():
+        if update_status["running"]:
+            time.sleep(interval)
+            continue
+
+        new_data = {}
+        try:
+            if not client.is_socket_open():
+                reconnect_attempts += 1
+                if reconnect_attempts >= max_reconnect_attempts:
+                    new_data["error"] = f"Failed to reconnect after {max_reconnect_attempts} attempts. Exiting."
+                    stop_event.set()
+                    break
+                
+                # Attempt to connect
+                if client.connect():
+                    reconnect_attempts = 0
+                    new_data["error"] = None # Clear error on successful reconnect
+                else:
+                    new_data["error"] = f"Connection lost. Attempting to reconnect ({reconnect_attempts}/{max_reconnect_attempts})..."
+                    time.sleep(reconnect_delay)
+                    continue
+
+            # If connected, try to read data
+            ir_valve = client.read_input_registers(REG_INPUT_VALVE_STATE_MOVEMENT, count=2, slave=slave_id)
+            ir_dig = client.read_input_registers(REG_INPUT_DIGITAL_INPUTS_STATE, count=2, slave=slave_id)
+            ir_sys = client.read_input_registers(REG_INPUT_FIRMWARE_VERSION_MAJOR_MINOR, count=5, slave=slave_id)
+            hr_valve = client.read_holding_registers(REG_HOLDING_MAX_OPENING_TIME_S, count=2, slave=slave_id)
+            hr_dig = client.read_holding_registers(REG_HOLDING_DIGITAL_OUTPUTS_STATE, count=1, slave=slave_id)
+            hr_sys = client.read_holding_registers(REG_HOLDING_WATCHDOG_TIMEOUT_S, count=1, slave=slave_id)
+
+            for res in [ir_valve, ir_dig, ir_sys, hr_valve, hr_dig, hr_sys]:
+                if res.isError():
+                    raise ModbusException(str(res))
+            
+            valve_state_raw = ir_valve.registers[0]
+            movement_map = {0: "Idle", 1: "Opening", 2: "Closing", 3: "Error"}
+            state_map = {0: "Closed", 1: "Open"}
+            new_data["movement"] = movement_map.get(valve_state_raw >> 8, 'Unknown')
+            new_data["state"] = state_map.get(valve_state_raw & 0xFF, 'Unknown')
+            new_data["motor_current"] = f"{ir_valve.registers[1]} mA"
+            new_data["open_time"] = f"{hr_valve.registers[0]}s"
+            new_data["close_time"] = f"{hr_valve.registers[1]}s"
+            new_data["digital_inputs"] = f"0x{ir_dig.registers[0]:04X}"
+            new_data["button_events"] = f"0x{ir_dig.registers[1]:04X}"
+            new_data["digital_outputs"] = f"0x{hr_dig.registers[0]:04X}"
+            
+            fw_major = ir_sys.registers[0] >> 8
+            fw_minor = ir_sys.registers[0] & 0xFF
+            fw_patch = ir_sys.registers[1]
+            uptime_seconds = (ir_sys.registers[4] << 16) | ir_sys.registers[3]
+            new_data["firmware"] = f"v{fw_major}.{fw_minor}.{fw_patch}"
+            new_data["device_status"] = "OK" if ir_sys.registers[2] == 0 else "ERROR"
+            new_data["uptime"] = format_uptime(uptime_seconds)
+            new_data["watchdog"] = f"{hr_sys.registers[0]}s"
+            new_data["error"] = None # Clear any previous error on successful read
+            reconnect_attempts = 0 # Reset attempts on successful communication
+        except Exception as e:
+            new_data["error"] = f"Communication Error: {e}. Closing connection."
+            client.close() # Close connection to force reconnect attempt in next loop
+        finally:
+            with status_lock:
+                status_data = new_data
+            time.sleep(interval)
+
+def firmware_update_thread(slave_id, filepath):
+    global update_status
+    with update_lock:
+        update_status = {"running": True, "message": "Starting update...", "progress": 0.0}
+    try:
+        with open(filepath, 'rb') as f: firmware = f.read()
+        file_size = len(firmware)
+        chunk_size = 248
+        offset = 0
+        while offset < file_size:
+            chunk = firmware[offset:offset + chunk_size]
+            with update_lock:
+                update_status["message"] = f"Sending chunk {offset//chunk_size + 1}/{(file_size + chunk_size - 1)//chunk_size}..."
+                update_status["progress"] = offset / file_size
+            client.write_register(REG_HOLDING_FWU_CHUNK_OFFSET_LOW, offset & 0xFFFF, slave=slave_id)
+            client.write_register(REG_HOLDING_FWU_CHUNK_OFFSET_HIGH, (offset >> 16) & 0xFFFF, slave=slave_id)
+            client.write_register(REG_HOLDING_FWU_CHUNK_SIZE, len(chunk), slave=slave_id)
+            padded_chunk = chunk + (b'\x00' if len(chunk) % 2 != 0 else b'')
+            registers = [int.from_bytes(padded_chunk[i:i+2], 'big') for i in range(0, len(padded_chunk), 2)]
+            burst_size_regs = 16
+            for i in range(0, len(registers), burst_size_regs):
+                reg_burst = registers[i:i + burst_size_regs]
+                start_addr = REG_HOLDING_FWU_DATA_BUFFER + i
+                client.write_registers(start_addr, reg_burst, slave=slave_id)
+                time.sleep(0.02)
+            time.sleep(0.1)
+            client.read_input_registers(REG_INPUT_FWU_LAST_CHUNK_CRC, count=1, slave=slave_id)
+            client.write_register(REG_HOLDING_FWU_COMMAND, 1, slave=slave_id)
+            offset += len(chunk)
+        with update_lock:
+            update_status["progress"] = 1.0
+            update_status["message"] = "Finalizing update..."
+        client.write_register(REG_HOLDING_FWU_COMMAND, 2, slave=slave_id)
+        time.sleep(1)
+        with update_lock: update_status["message"] = "Update complete! Slave is rebooting."
+        time.sleep(2)
+    except Exception as e:
+        with update_lock: update_status["message"] = f"Error: {e}"
+        time.sleep(3)
+    finally:
+        with update_lock: update_status["running"] = False
+
+def draw_button(stdscr, y, x, text, selected=False):
+    """Draws a button, handling selection highlight."""
+    color = curses.color_pair(2) if selected else curses.color_pair(1)
+    button_width = len(text) + 2
+    stdscr.addstr(y, x, " " * button_width, color)
+    stdscr.addstr(y, x + 1, text, color)
+
+def file_browser(stdscr):
+    """A simple curses file browser."""
+    curses.curs_set(1)
+    path = os.getcwd()
+    selected_index = 0
+    
+    while True:
+        stdscr.clear()
+        h, w = stdscr.getmaxyx()
+        stdscr.addstr(0, 0, f"Select Firmware File: {path}".ljust(w-1), curses.color_pair(2))
+        
+        try:
+            items = sorted(os.listdir(path))
+        except OSError as e:
+            items = [f".. (Error: {e})"]
+
+        items.insert(0, "..")
+        
+        for i, item_name in enumerate(items):
+            if i >= h - 2: break
+            display_name = item_name
+            if os.path.isdir(os.path.join(path, item_name)):
+                display_name += "/"
+            
+            if i == selected_index:
+                stdscr.addstr(i + 1, 0, display_name, curses.color_pair(2))
+            else:
+                stdscr.addstr(i + 1, 0, display_name)
+
+        key = stdscr.getch()
+
+        if key == curses.KEY_UP:
+            selected_index = max(0, selected_index - 1)
+        elif key == curses.KEY_DOWN:
+            selected_index = min(len(items) - 1, selected_index + 1)
+        elif key == curses.KEY_ENTER or key in [10, 13]:
+            selected_item_path = os.path.join(path, items[selected_index])
+            if os.path.isdir(selected_item_path):
+                path = os.path.abspath(selected_item_path)
+                selected_index = 0
+            else:
+                return selected_item_path
+        elif key == 27: # ESC key
+            return None
+
+def main_menu(stdscr, slave_id):
+    global status_data, update_status
+    curses.curs_set(0); stdscr.nodelay(1); stdscr.timeout(100)
+    curses.start_color(); curses.init_pair(1, curses.COLOR_WHITE, curses.COLOR_BLUE); curses.init_pair(2, curses.COLOR_BLUE, curses.COLOR_WHITE); curses.init_pair(3, curses.COLOR_RED, curses.COLOR_BLUE)
+    stdscr.bkgd(' ', curses.color_pair(1))
+
+    menu = ["Open Valve", "Close Valve", "Stop Valve", "Toggle Output 1", "Toggle Output 2", "Set Watchdog", "Reset Node", "Firmware Update", "Exit"]
+    current_row_idx = 0
+    message, message_time = "", 0
+    input_mode, input_prompt, input_str, input_target_reg = False, "", "", 0
+
+    while not stop_event.is_set():
+        h, w = stdscr.getmaxyx()
+        key = stdscr.getch()
+
+        with update_lock: is_updating = update_status["running"]
+
+        if is_updating:
+            pass
+        elif input_mode:
+            if key in [10, 13]:
+                try:
+                    value = int(input_str)
+                    client.write_register(input_target_reg, value, slave=slave_id)
+                    message = f"-> Set register 0x{input_target_reg:04X} to {value}"
+                except Exception as e: message = f"-> Error: {e}"
+                message_time, input_mode, input_str = time.time(), False, ""
+            elif key == curses.KEY_BACKSPACE or key == 127: input_str = input_str[:-1]
+            elif key != -1 and chr(key).isprintable(): input_str += chr(key)
+        else:
+            if key == curses.KEY_UP: current_row_idx = (current_row_idx - 1) % len(menu)
+            elif key == curses.KEY_DOWN: current_row_idx = (current_row_idx + 1) % len(menu)
+            elif key == curses.KEY_ENTER or key in [10, 13]:
+                selected_option = menu[current_row_idx]
+                message_time = time.time()
+                if selected_option == "Exit": stop_event.set(); continue
+                elif selected_option == "Open Valve": client.write_register(REG_HOLDING_VALVE_COMMAND, 1, slave=slave_id); message = "-> Sent OPEN command"
+                elif selected_option == "Close Valve": client.write_register(REG_HOLDING_VALVE_COMMAND, 2, slave=slave_id); message = "-> Sent CLOSE command"
+                elif selected_option == "Stop Valve": client.write_register(REG_HOLDING_VALVE_COMMAND, 0, slave=slave_id); message = "-> Sent STOP command"
+                elif "Toggle Output" in selected_option:
+                    bit = 0 if "1" in selected_option else 1
+                    try:
+                        current_val = client.read_holding_registers(REG_HOLDING_DIGITAL_OUTPUTS_STATE, count=1, slave=slave_id).registers[0]
+                        client.write_register(REG_HOLDING_DIGITAL_OUTPUTS_STATE, current_val ^ (1 << bit), slave=slave_id)
+                        message = f"-> Toggled Output {bit+1}"
+                    except Exception as e: message = f"-> Error: {e}"
+                elif selected_option == "Set Watchdog":
+                    input_mode, input_prompt, input_target_reg = True, "Enter Watchdog Timeout (s): ", REG_HOLDING_WATCHDOG_TIMEOUT_S
+                elif selected_option == "Reset Node":
+                    try:
+                        client.write_register(REG_HOLDING_DEVICE_RESET, 1, slave=slave_id)
+                        message = "-> Sent RESET command. Node should reboot."
+                    except Exception as e:
+                        message = f"-> Error sending reset: {e}"
+                elif selected_option == "Firmware Update":
+                    filepath = file_browser(stdscr)
+                    if filepath:
+                        threading.Thread(target=firmware_update_thread, args=(slave_id, filepath), daemon=True).start()
+                    else:
+                        message = "-> Firmware update cancelled."
+
+        stdscr.clear()
+        if is_updating:
+            with update_lock: prog, msg = update_status["progress"], update_status["message"]
+            stdscr.addstr(h // 2 - 1, w // 2 - 25, "FIRMWARE UPDATE IN PROGRESS", curses.A_BOLD | curses.color_pair(2))
+            stdscr.addstr(h // 2, w // 2 - 25, f"[{'#' * int(prog * 50):<50}] {prog:.0%}")
+            stdscr.addstr(h // 2 + 1, w // 2 - 25, msg.ljust(50))
+        else:
+            with status_lock: current_data = status_data.copy()
+            bold, normal = curses.color_pair(1) | curses.A_BOLD, curses.color_pair(1)
+            if current_data.get("error"): stdscr.addstr(0, 0, current_data["error"], curses.color_pair(3) | curses.A_BOLD)
+            else:
+                col1, col2, col3, col4 = 2, 30, 58, 88
+                stdscr.addstr(1, col1, "State:", bold); stdscr.addstr(1, col1 + 18, str(current_data.get('state', 'N/A')), normal)
+                stdscr.addstr(2, col1, "Movement:", bold); stdscr.addstr(2, col1 + 18, str(current_data.get('movement', 'N/A')), normal)
+                stdscr.addstr(3, col1, "Motor Current:", bold); stdscr.addstr(3, col1 + 18, str(current_data.get('motor_current', 'N/A')), normal)
+                stdscr.addstr(1, col2, "Digital Inputs:", bold); stdscr.addstr(1, col2 + 18, str(current_data.get('digital_inputs', 'N/A')), normal)
+                stdscr.addstr(2, col2, "Digital Outputs:", bold); stdscr.addstr(2, col2 + 18, str(current_data.get('digital_outputs', 'N/A')), normal)
+                stdscr.addstr(3, col2, "Button Events:", bold); stdscr.addstr(3, col2 + 18, str(current_data.get('button_events', 'N/A')), normal)
+                stdscr.addstr(1, col3, "Max Open Time:", bold); stdscr.addstr(1, col3 + 16, str(current_data.get('open_time', 'N/A')), normal)
+                stdscr.addstr(2, col3, "Max Close Time:", bold); stdscr.addstr(2, col3 + 16, str(current_data.get('close_time', 'N/A')), normal)
+                stdscr.addstr(3, col3, "Watchdog:", bold); stdscr.addstr(3, col3 + 16, str(current_data.get('watchdog', 'N/A')), normal)
+                stdscr.addstr(1, col4, "Firmware:", bold); stdscr.addstr(1, col4 + 14, str(current_data.get('firmware', 'N/A')), normal)
+                stdscr.addstr(2, col4, "Uptime:", bold); stdscr.addstr(2, col4 + 14, str(current_data.get('uptime', 'N/A')), normal)
+                stdscr.addstr(3, col4, "Dev. Status:", bold); stdscr.addstr(3, col4 + 14, str(current_data.get('device_status', 'N/A')), normal)
+            stdscr.addstr(5, 0, "─" * (w - 1), normal)
+            for idx, row in enumerate(menu):
+                draw_button(stdscr, h // 2 - len(menu) + (idx * 2), w // 2 - len(row) // 2, row, idx == current_row_idx)
+            if time.time() - message_time < 2.0: stdscr.addstr(h - 2, 0, message.ljust(w - 1), curses.color_pair(1) | curses.A_BOLD)
+            if input_mode:
+                curses.curs_set(1); stdscr.addstr(h - 2, 0, (input_prompt + input_str).ljust(w-1), curses.color_pair(2)); stdscr.move(h - 2, len(input_prompt) + len(input_str))
+            else: curses.curs_set(0)
+        stdscr.refresh()
+
+def main():
+    global client
+    parser = argparse.ArgumentParser(description="Modbus tool for irrigation system nodes.")
+    parser.add_argument("port", help="Serial port"); parser.add_argument("--baud", type=int, default=19200); parser.add_argument("--slave-id", type=int, default=1); parser.add_argument("--interval", type=float, default=1.0)
+    args = parser.parse_args()
+    client = ModbusSerialClient(port=args.port, baudrate=args.baud, stopbits=1, bytesize=8, parity="N", timeout=1)
+    if not client.connect(): print(f"Error: Failed to connect to serial port {args.port}"); sys.exit(1)
+    print("Successfully connected. Starting UI..."); time.sleep(0.5)
+    threading.Thread(target=poll_status, args=(args.slave_id, args.interval), daemon=True).start()
+    try: curses.wrapper(main_menu, args.slave_id)
+    finally:
+        stop_event.set()
+        print("\nExiting...")
+        if client.is_socket_open(): client.close()
+
+if __name__ == "__main__":
+    main()

software/tools/modbus_tool/requirements.txt

@@ -0,0 +1,2 @@
+pymodbus>=3.6.0
+pyserial>=3.5

software/worspace.code-workspace

@@ -1,132 +0,0 @@
-{
-	"folders": [
-		{
-			"path": "."
-		}
-	],
-	"settings": {
-		// Hush CMake
-		"cmake.configureOnOpen": false,
-
-		// IntelliSense
-		"C_Cpp.default.compilerPath": "${userHome}/zephyr-sdk-0.17.1/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc",
-		"C_Cpp.default.compileCommands": "${workspaceFolder}/build/compile_commands.json",
-
-		// File Associations
-		"files.associations": {
-			"waterlevel_sensor.h": "c",
-			"shell.h": "c",
-			"can.h": "c"
-		}
-	},
-	"tasks": {
-		"version": "2.0.0",
-		"tasks": [
-			{
-				"label": "West Build",
-				"type": "shell",
-				"group": {
-					"kind": "build",
-					"isDefault": true
-				},
-				"command": "${userHome}/zephyrproject/.venv/bin/west",
-				"args": [
-					"build",
-					"-p",
-					"auto",
-					"-b",
-					"valve_node"
-				],
-				"problemMatcher": [
-					"$gcc"
-				],
-			},
-			{
-				"label": "West Configurable Build",
-				"type": "shell",
-				"group": {
-					"kind": "build",
-				},
-				"command": "${userHome}/zephyrproject/.venv/bin/west",
-				"args": [
-					"build",
-					"-p",
-					"${input:pristine}",
-					"-b",
-					"${input:board}"
-				],
-				"problemMatcher": [
-					"$gcc"
-				]
-			},
-			{
-				"label": "West Flash",
-				"type": "shell",
-				"command": "${userHome}/zephyrproject/.venv/bin/west",
-				"args": [
-					"flash"
-				],
-				"problemMatcher": [
-					"$gcc"
-				]
-			}
-		],
-		"inputs": [
-			{
-				"id": "board",
-				"type": "promptString",
-				"default": "vave_node",
-				"description": "See https://docs.zephyrproject.org/latest/boards/index.html"
-			},
-			{
-				"id": "pristine",
-				"type": "pickString",
-				"description": "Choose when to run a pristine build",
-				"default": "auto",
-				"options": [
-					"auto",
-					"always",
-					"never"
-				]
-			}
-		]
-	},
-	"launch": {
-		"version": "0.2.0",
-		"configurations": [
-			{
-				"name": "Launch",
-				"device": "STM32F103RB",
-				"cwd": "${workspaceFolder}",
-				"executable": "build/zephyr/zephyr.elf",
-				"request": "launch",
-				"type": "cortex-debug",
-				//"runToEntryPoint": "main",
-				"servertype": "jlink",
-				"gdbPath": "${userHome}/zephyr-sdk-0.17.1/arm-zephyr-eabi/bin/arm-zephyr-eabi-gdb",
-				"preLaunchTask": "West Build"
-			},
-			{
-				"name": "Attach",
-				"device": "STM32F103RB",
-				"cwd": "${workspaceFolder}",
-				"executable": "build/zephyr/zephyr.elf",
-				"request": "attach",
-				"type": "cortex-debug",
-				//"runToEntryPoint": "main",
-				"servertype": "jlink",
-				"gdbPath": "${userHome}/zephyr-sdk-0.17.1/arm-zephyr-eabi/bin/arm-zephyr-eabi-gdb"
-			},
-		]
-	},
-	"extensions": {
-		"recommendations": [
-			"ms-vscode.cpptools-extension-pack",
-			"ms-python.python",
-			"ms-vscode.vscode-embedded-tools",
-			"ms-vscode.vscode-serial-monitor",
-			"marus25.cortex-debug",
-			"donjayamanne.python-environment-manager"
-		]
-	}
-}