Eduard Iten
6e669cfc4e
This commit transforms the previous "Blinky" sample into a functional
Homeassistant MQTT Gateway application.
Key features and changes include:
- **Application Logic:** The core application logic is updated to function as a gateway between Modbus and MQTT.
- **Network Configuration:**
- Implemented persistent network settings using the Zephyr settings subsystem and NVS.
- Added robust Wi-Fi connection management with auto-reconnect.
- Centralized IP configuration to support both DHCP and static IP addresses.
- **Configuration:** Project and board configurations have been updated to enable necessary kernel features and network settings.
- **Documentation:** The README has been updated to reflect the new functionality and usage instructions.
- **Simulation:** The simulation script has been updated.
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Modbus MQTT Gateway
Overview
This Zephyr application serves as an MQTT gateway, primarily designed to bridge Modbus devices with a Home Assistant instance. It connects to a WiFi network, obtains an IP address, and communicates with an MQTT broker.
Features
- WiFi Connectivity: Connects to a specified WiFi network using credentials provided via Kconfig.
- Network Configuration: Supports both DHCP and static IP addressing for flexible network integration.
- MQTT Integration: Configured to communicate with an MQTT broker, with specific options for Home Assistant discovery.
- Configurability: All major parameters, including WiFi, network, and MQTT settings, are configurable through Kconfig.
- Simulation Support: Includes a script and configuration for running in a simulated environment (native_sim).
Configuration
The application is configured using Kconfig. Key options can be found in the "Home Assistant MQTT Options" menu.
- WiFi Settings: - CONFIG_WIFI_SSID: The SSID of the WiFi network. - CONFIG_WIFI_PASSWORD: The password for the WiFi network.
- Network Settings: - CONFIG_NET_DHCP: Enable or disable DHCP. - CONFIG_NET_IP_ADDR: Static IP address. - CONFIG_NET_IP_MASK: Static IP netmask. - CONFIG_NET_IP_GATEWAY: Static IP gateway. - CONFIG_NET_DNS_SERVER: Static DNS server.
- MQTT Broker Settings: - CONFIG_HA_MQTT_BROKER_HOSTNAME: Hostname or IP of the MQTT broker. - CONFIG_HA_MQTT_BROKER_PORT: Port of the MQTT broker. - CONFIG_HA_MQTT_USERNAME: Username for MQTT authentication. - CONFIG_HA_MQTT_PASSWORD: Password for MQTT authentication.
- Home Assistant Device Info: - CONFIG_HA_MQTT_NAME: Device name. - CONFIG_HA_MQTT_MANUFACTURER: Manufacturer name. - CONFIG_HA_MQTT_MODEL: Model name.
Building and Running
Building for Hardware (e.g., ESP32-C6)
System Message: WARNING/2 (<stdin>, line 53)
Cannot analyze code. Pygments package not found.
.. code-block:: shell west build -b esp32c6_devkitc_hpcore
Running in Simulation
A simulation can be run using the provided script:
System Message: WARNING/2 (<stdin>, line 61)
Cannot analyze code. Pygments package not found.
.. code-block:: shell ./run_sim.sh
This will build and run the application for the native_sim target.