zwischenstand

2026-03-21 13:49:05 +01:00
parent b863b04505
commit 01448223ad
30 changed files with 1446 additions and 295 deletions
--- a/firmware/libs/CMakeLists.txt
+++ b/firmware/libs/CMakeLists.txt
@@ -1,3 +1,4 @@
+add_subdirectory(fw_mgmt)
 add_subdirectory(fs_mgmt)
 add_subdirectory(ble_mgmt)
 add_subdirectory(buzz_proto)
--- a/firmware/libs/Kconfig
+++ b/firmware/libs/Kconfig
@@ -1,3 +1,4 @@
+rsource "fw_mgmt/Kconfig"
 rsource "fs_mgmt/Kconfig"
 rsource "ble_mgmt/Kconfig"
 rsource "buzz_proto/Kconfig"
--- a/firmware/libs/buzz_proto/include/buzz_proto.h
+++ b/firmware/libs/buzz_proto/include/buzz_proto.h
@@ -35,6 +35,7 @@ enum buzz_data_type
    BUZZ_DATA_PROTO_INFO = 0x01,
    BUZZ_DATA_DEVICE_INFO = 0x02,
    BUZZ_DATA_FS_INFO = 0x03,
+    BUZZ_DATA_FW_INFO = 0x04,

    BUZZ_DATA_FILE_GET = 0x20,
    BUZZ_DATA_FILE_PUT = 0x21,
@@ -88,6 +89,17 @@ struct __attribute__((packed)) buzz_resp_proto_version
    uint16_t max_chunk_size; /* Little Endian */
 };

+/* Payload für die Geräteinformationen */
+struct __attribute__((packed)) buzz_resp_device_info
+{
+    uint8_t data_type;             /* BUZZ_DATA_DEVICE_INFO */
+    uint8_t device_id[8];          /* EUI64 oder ähnliche eindeutige ID */
+    uint8_t board_name_length;     /* Länge des Board-Namens */
+    uint8_t board_revision_length; /* Länge der Board-Revision */
+    uint8_t soc_name_length;       /* Länge des SOC-Namens */
+    char data[];                   /* Variabler String ohne Null-Terminierung: [board_name][board_revision][soc_name] */
+};
+
 /* Payload für die Dateisystem-Informationen */
 struct __attribute__((packed)) buzz_resp_fs_info
 {
@@ -100,6 +112,16 @@ struct __attribute__((packed)) buzz_resp_fs_info
    uint8_t data[];            /* Pfadnamen */
 };

+/* Payload für die Firmware-Infos */
+struct __attribute__((packed)) buzz_resp_fw_info
+{
+    uint8_t data_type;             /* BUZZ_DATA_FW_INFO */
+    uint8_t fw_status;             /* fw_state_t */
+    uint32_t slot1_size;           /* Größe des Slot1-Partitionsbereichs (Little Endian) */
+    uint8_t fw_version_length;     /* Länge der Firmware-Versionszeichenkette */
+    uint8_t kernel_version_length; /* Länge der Kernel-Versionszeichenkette */
+    char data[];                   /* Variabler String ohne Null-Terminierung: [fw_version][kernel_version] */
+};
 /* Payload für das Entfernen einer Datei */
 struct __attribute__((packed)) buzz_rm_file_payload
 {
@@ -171,7 +193,6 @@ void buzz_proto_buf_free(uint8_t **buf);
 /* Übergabe eines empfangenen Frames an den Protokoll-Thread */
 int buzz_proto_submit_frame(struct buzz_frame_msg *msg);

-
 /* Gibt die Anzahl der freien Slabs zurück (abzüglich Reserve) */
 uint16_t buzz_proto_get_free_rx_slabs(void);

--- a/firmware/libs/buzz_proto/src/buzz_proto.c
+++ b/firmware/libs/buzz_proto/src/buzz_proto.c
@@ -8,6 +8,7 @@

 #include "buzz_proto.h"
 #include "fs_mgmt.h"
+#include "fw_mgmt.h"

 LOG_MODULE_REGISTER(buzz_proto, CONFIG_BUZZ_PROTO_LOG_LEVEL);
 K_MEM_SLAB_DEFINE(buzz_proto_slabs, CONFIG_BUZZ_PROTO_SLAB_SIZE, CONFIG_BUZZ_PROTO_SLAB_COUNT, 4);
@@ -172,7 +173,7 @@ static void handle_proto_version_request(struct buzz_frame_msg *msg)
    resp_data->data_type = BUZZ_DATA_PROTO_INFO;
    resp_data->version = sys_cpu_to_le16(BUZZ_PROTO_VERSION);

-    /* Dynamische Chunk-Größe basierend auf der aktuellen Transport-MTU berechnen */
+    /* Dynamische Chunk-Grösse basierend auf der aktuellen Transport-MTU berechnen */
    uint16_t slab_payload = CONFIG_BUZZ_PROTO_SLAB_SIZE - sizeof(struct buzz_proto_header);
    uint16_t transport_payload = 0;
    
@@ -192,6 +193,34 @@ static void handle_proto_version_request(struct buzz_frame_msg *msg)
    }
 }

+void handle_device_info_request(struct buzz_frame_msg *msg) {
+    struct buzz_proto_header *hdr = (struct buzz_proto_header *)msg->data_ptr;
+    hdr->frame_type = BUZZ_FRAME_RESPONSE;
+    struct buzz_resp_device_info *resp_data = (struct buzz_resp_device_info *)(msg->data_ptr + sizeof(*hdr));
+    resp_data->data_type = BUZZ_DATA_DEVICE_INFO;
+    if (fw_mgmt_get_id(resp_data->device_id, sizeof(resp_data->device_id)) < 0) {
+        LOG_ERR("Failed to get device ID");
+        send_error_frame(msg, EIO);
+        return;
+    }
+    const char *board_name = fw_mgmt_get_board_name();
+    const char *board_rev = fw_mgmt_get_board_revision();
+    const char *soc_name = fw_mgmt_get_soc_name();
+    resp_data->board_name_length = MIN(strlen(board_name), 32); // Sicherheitsmassnahme gegen zu lange Namen
+    resp_data->board_revision_length = MIN(strlen(board_rev), 32); // Sicherheitsmassnahme gegen zu lange Namen
+    resp_data->soc_name_length = MIN(strlen(soc_name), 32); // Sicherheitsmassnahme gegen zu lange Namen
+    memcpy(resp_data->data, board_name, resp_data->board_name_length);
+    memcpy(resp_data->data + resp_data->board_name_length, board_rev, resp_data->board_revision_length);
+    memcpy(resp_data->data + resp_data->board_name_length + resp_data->board_revision_length, soc_name, resp_data->soc_name_length);
+    uint16_t payload_length = sizeof(struct buzz_resp_device_info) + resp_data->board_name_length + resp_data->board_revision_length + resp_data->soc_name_length;
+    hdr->payload_length = sys_cpu_to_le16(payload_length);
+    uint16_t total_len = sizeof(struct buzz_proto_header) + payload_length;
+    if (msg->reply_cb)
+    {
+        msg->reply_cb(msg->data_ptr, total_len);
+    }
+}
+
 void handle_fs_info_request(struct buzz_frame_msg *msg)
 {
    struct buzz_proto_header *hdr = (struct buzz_proto_header *)msg->data_ptr;
@@ -234,6 +263,36 @@ void handle_fs_info_request(struct buzz_frame_msg *msg)
    }
 }

+static void handle_fw_info_request(struct buzz_frame_msg *msg)
+{
+    struct buzz_proto_header *hdr = (struct buzz_proto_header *)msg->data_ptr;
+
+    hdr->frame_type = BUZZ_FRAME_RESPONSE;
+
+    struct buzz_resp_fw_info *resp_data = (struct buzz_resp_fw_info *)(msg->data_ptr + sizeof(*hdr));
+
+    resp_data->data_type = BUZZ_DATA_FW_INFO;
+    resp_data->fw_status = fw_mgmt_get_fw_state();
+    resp_data->slot1_size = sys_cpu_to_le32(fw_mgmt_get_slot1_size());
+
+    const char *fw_version = fw_mgmt_get_fw_version_string();
+    const char *kernel_version = fw_mgmt_get_kernel_version_string();
+    resp_data->fw_version_length = MIN(strlen(fw_version), 32); // Sicherheitsmassnahme gegen zu lange Strings
+    resp_data->kernel_version_length = MIN(strlen(kernel_version), 32); // Sicherheitsmassnahme gegen zu lange Strings
+    memcpy(resp_data->data, fw_version, resp_data->fw_version_length);
+    memcpy(resp_data->data + resp_data->fw_version_length, kernel_version, resp_data->kernel_version_length);
+
+    uint16_t payload_length = sizeof(struct buzz_resp_fw_info) + resp_data->fw_version_length + resp_data->kernel_version_length;
+    hdr->payload_length = sys_cpu_to_le16(payload_length);
+
+    uint16_t total_len = sizeof(struct buzz_proto_header) + payload_length;
+
+    if (msg->reply_cb)
+    {
+        msg->reply_cb(msg->data_ptr, total_len);
+    }
+}
+
 static void handle_ls_request(struct buzz_frame_msg *msg)
 {
    struct buzz_proto_header *hdr = (struct buzz_proto_header *)msg->data_ptr;
@@ -619,6 +678,11 @@ static void handle_request(struct buzz_frame_msg *msg)
        handle_proto_version_request(msg);
        break;

+    case BUZZ_DATA_DEVICE_INFO:
+        LOG_DBG("Received Device Info Request");
+        handle_device_info_request(msg);
+        break;
+
    case BUZZ_DATA_FS_INFO:
        LOG_DBG("Received FS Info Request");
        handle_fs_info_request(msg);
@@ -629,6 +693,11 @@ static void handle_request(struct buzz_frame_msg *msg)
        handle_ls_request(msg);
        break;

+    case BUZZ_DATA_FW_INFO:
+        LOG_DBG("Received FW Info Request");
+        handle_fw_info_request(msg);
+        break;
+
    case BUZZ_DATA_FILE_GET:
        LOG_DBG("Received FILE_GET Request");
        handle_file_get_request(msg, false);
--- a/firmware/libs/fs_mgmt/src/fs_mgmt.c
+++ b/firmware/libs/fs_mgmt/src/fs_mgmt.c
@@ -514,8 +514,8 @@ static void fs_thread_entry(void *p1, void *p2, void *p3)
            LOG_WRN("Write timeout! Aborting transfer.");
            if (write_ctx.state == FS_STATE_RECEIVING_FILE)
            {
-                // fs_mgmt_pm_close(&write_ctx.file);
-                // fs_mgmt_pm_unlink(write_ctx.filename);
+                fs_mgmt_pm_close(&write_ctx.file);
+                fs_mgmt_pm_unlink(write_ctx.filename);
            }
            write_ctx.state = FS_STATE_IDLE;
            continue;
@@ -536,8 +536,8 @@ static void fs_thread_entry(void *p1, void *p2, void *p3)
                memcpy(write_ctx.filename, msg.slab_ptr + msg.data_offset, msg.data_len);
                write_ctx.filename[msg.data_len] = '\0';

-                // fs_mgmt_pm_unlink(write_ctx.filename);
-                // rc = fs_mgmt_pm_open(&write_ctx.file, write_ctx.filename, FS_O_CREATE | FS_O_WRITE);
+                fs_mgmt_pm_unlink(write_ctx.filename);
+                rc = fs_mgmt_pm_open(&write_ctx.file, write_ctx.filename, FS_O_CREATE | FS_O_WRITE);

                if (rc == 0)
                {
@@ -568,7 +568,7 @@ static void fs_thread_entry(void *p1, void *p2, void *p3)
                write_ctx.filename[msg.data_len] = '\0';

                /* Datei öffnen: Nur Lese- und Schreibrechte, Datei muss bereits existieren */
-                // int rc = fs_mgmt_pm_open(&write_ctx.file, write_ctx.filename, FS_O_READ | FS_O_WRITE);
+                int rc = fs_mgmt_pm_open(&write_ctx.file, write_ctx.filename, FS_O_READ | FS_O_WRITE);

                if (rc == 0)
                {
@@ -583,7 +583,7 @@ static void fs_thread_entry(void *p1, void *p2, void *p3)
                    }

                    /* Datei ab dem Ende der Audiodaten abschneiden (alte Tags entfernen) */
-                    // rc = fs_truncate(&write_ctx.file, audio_len);
+                    rc = fs_truncate(&write_ctx.file, audio_len);
                    if (rc != 0)
                    {
                        LOG_ERR("Failed to truncate file: %d", rc);
@@ -593,7 +593,7 @@ static void fs_thread_entry(void *p1, void *p2, void *p3)
                    }

                    /* File-Pointer exakt an das neue Ende (audio_len) setzen */
-                    // fs_seek(&write_ctx.file, audio_len, FS_SEEK_SET);
+                    fs_seek(&write_ctx.file, audio_len, FS_SEEK_SET);

                    write_ctx.state = FS_STATE_RECEIVING_TAGS;
                    write_ctx.crc32 = 0;
@@ -622,8 +622,7 @@ static void fs_thread_entry(void *p1, void *p2, void *p3)
        case FS_STATE_RECEIVING_FILE:
            if (msg.op == FS_WRITE_OP_FILE_CHUNK && msg.slab_ptr)
            {
-                // ssize_t written = fs_write(&write_ctx.file, msg.slab_ptr + msg.data_offset, msg.data_len);
-                ssize_t written = msg.data_len; /* Zum Testen, da wir ja kein echtes FS-Backend haben */
+                ssize_t written = fs_write(&write_ctx.file, msg.slab_ptr + msg.data_offset, msg.data_len);
                if (written == msg.data_len)
                {
                    write_ctx.crc32 = crc32_ieee_update(write_ctx.crc32, msg.slab_ptr + msg.data_offset, msg.data_len);
@@ -649,7 +648,7 @@ static void fs_thread_entry(void *p1, void *p2, void *p3)
            }
            else if (msg.op == FS_WRITE_OP_FILE_END)
            {
-                // fs_mgmt_pm_close(&write_ctx.file);
+                fs_mgmt_pm_close(&write_ctx.file);
                write_ctx.state = FS_STATE_IDLE;

                if (write_ctx.crc32 == msg.metadata)
@@ -660,14 +659,14 @@ static void fs_thread_entry(void *p1, void *p2, void *p3)
                else
                {
                    LOG_ERR("CRC Mismatch! Expected: 0x%08X, Got: 0x%08X", msg.metadata, write_ctx.crc32);
-                    // fs_mgmt_pm_unlink(write_ctx.filename);
+                    fs_mgmt_pm_unlink(write_ctx.filename);
                    buzz_proto_send_error_reusing_slab(msg.reply_cb, EBADMSG, msg.slab_ptr);
                }
            }
            else if (msg.op == FS_WRITE_OP_ABORT)
            {
-                // fs_mgmt_pm_close(&write_ctx.file);
-                // fs_mgmt_pm_unlink(write_ctx.filename);
+                fs_mgmt_pm_close(&write_ctx.file);
+                fs_mgmt_pm_unlink(write_ctx.filename);
                write_ctx.state = FS_STATE_IDLE;
                if (msg.slab_ptr)
                    buzz_proto_buf_free(&msg.slab_ptr);
@@ -677,8 +676,7 @@ static void fs_thread_entry(void *p1, void *p2, void *p3)
        case FS_STATE_RECEIVING_TAGS:
            if (msg.op == FS_WRITE_OP_FILE_CHUNK && msg.slab_ptr)
            {
-                // ssize_t written = fs_write(&write_ctx.file, msg.slab_ptr + msg.data_offset, msg.data_len);
-                    ssize_t written = msg.data_len; /* Zum Testen, da wir ja kein echtes FS-Backend haben */
+                ssize_t written = fs_write(&write_ctx.file, msg.slab_ptr + msg.data_offset, msg.data_len);
                if (written == msg.data_len)
                {
                    write_ctx.crc32 = crc32_ieee_update(write_ctx.crc32, msg.slab_ptr + msg.data_offset, msg.data_len);
@@ -699,8 +697,8 @@ static void fs_thread_entry(void *p1, void *p2, void *p3)
                else
                {
                    LOG_ERR("Flash write failed during tags transfer!");
-                    // fs_truncate(&write_ctx.file, write_ctx.audio_len); /* Rollback */
-                    // fs_mgmt_pm_close(&write_ctx.file);
+                    fs_truncate(&write_ctx.file, write_ctx.audio_len); /* Rollback */
+                    fs_mgmt_pm_close(&write_ctx.file);
                    write_ctx.state = FS_STATE_IDLE;
                    buzz_proto_send_error_reusing_slab(msg.reply_cb, EIO, msg.slab_ptr);
                }
@@ -716,16 +714,16 @@ static void fs_thread_entry(void *p1, void *p2, void *p3)
                else
                {
                    LOG_ERR("Tags CRC Mismatch! Expected: 0x%08X, Got: 0x%08X", msg.metadata, write_ctx.crc32);
-                    // fs_truncate(&write_ctx.file, write_ctx.audio_len); /* Rollback */
-                    // fs_mgmt_pm_close(&write_ctx.file);
+                    fs_truncate(&write_ctx.file, write_ctx.audio_len); /* Rollback */
+                    fs_mgmt_pm_close(&write_ctx.file);
                    buzz_proto_send_error_reusing_slab(msg.reply_cb, EBADMSG, msg.slab_ptr);
                }
                write_ctx.state = FS_STATE_IDLE;
            }
            else if (msg.op == FS_WRITE_OP_ABORT)
            {
-                // fs_truncate(&write_ctx.file, write_ctx.audio_len); /* Rollback */
-                // fs_mgmt_pm_close(&write_ctx.file);
+                fs_truncate(&write_ctx.file, write_ctx.audio_len); /* Rollback */
+                fs_mgmt_pm_close(&write_ctx.file);
                write_ctx.state = FS_STATE_IDLE;
                if (msg.slab_ptr)
                    buzz_proto_buf_free(&msg.slab_ptr);
--- a/firmware/libs/fw_mgmt/CMakeLists.txt
+++ b/firmware/libs/fw_mgmt/CMakeLists.txt
@@ -1,17 +1,16 @@
-if(CONFIG_FS_MGMT)
+if(CONFIG_FW_MGMT)
  zephyr_library()
-  zephyr_library_sources(src/fs_mgmt.c)
+  zephyr_library_sources(src/fw_mgmt.c)
  zephyr_include_directories(include)

-  if(CONFIG_FILE_SYSTEM_LITTLEFS)
-    if(DEFINED ZEPHYR_LITTLEFS_MODULE_DIR)
-      zephyr_include_directories(${ZEPHYR_LITTLEFS_MODULE_DIR})
-    elseif(DEFINED WEST_TOPDIR)
-      zephyr_include_directories(${WEST_TOPDIR}/modules/fs/littlefs)
+  if(CONFIG_MCUBOOT_IMG_MANAGER)
+    # img_mgmt.h pulls in <bootutil/image.h> and <zcbor_common.h>
+    if(DEFINED ZEPHYR_MCUBOOT_MODULE_DIR)
+      zephyr_include_directories(${ZEPHYR_MCUBOOT_MODULE_DIR}/boot/bootutil/include)
+      zephyr_include_directories(${ZEPHYR_MCUBOOT_MODULE_DIR}/boot/zephyr/include)
    endif()
-
-    if(DEFINED ZEPHYR_BASE)
-      zephyr_include_directories(${ZEPHYR_BASE}/modules/littlefs)
+    if(DEFINED ZEPHYR_ZCBOR_MODULE_DIR)
+      zephyr_include_directories(${ZEPHYR_ZCBOR_MODULE_DIR}/include)
    endif()
  endif()
 endif()
--- a/firmware/libs/fw_mgmt/Kconfig
+++ b/firmware/libs/fw_mgmt/Kconfig
@@ -1,64 +1,22 @@
-menuconfig FS_MGMT
-    bool "File System Management"
+menuconfig FW_MGMT
+    bool "Firmware Management"
    select FLASH
    select FLASH_MAP
-    select FILE_SYSTEM
-    select FILE_SYSTEM_LITTLEFS
-    select FILE_SYSTEM_MKFS
+    select STREAM_FLASH
    select FLASH_PAGE_LAYOUT
-    select NORDIC_QSPI_NOR if SOC_SERIES_NRF52X && (SOC_NRF52840_QIAA || SOC_NRF52833_QIAA)
+    select BOOTLOADER_MCUBOOT
+    select IMG_MANAGER
+    select MCUBOOT_IMG_MGR
+    select HWINFO
+
    help
-      Library for initializing and managing the file system.
+      Library for firmware operations.

-if FS_MGMT
-    config FS_MGMT_MOUNT_POINT
-        string "Littlefs Mount Point"
-        default "/lfs"
-        help
-          Set the mount point for the Littlefs file system. Default is "/lfs".
-            
-    config FS_MGMT_AUDIO_SUBDIR
-        string "Audio File Path"
-        default "/a"
-        help
-          Set the path for the audio file within the file system. Default is "/a".
-
-    config FS_MGMT_SYSTEM_SUBDIR
-        string "System File Path"
-        default "/sys"
-        help
-          Set the path for the system file within the file system. Default is "/sys".
-
-    config FS_MGMT_THREAD_STACK_SIZE
-        int "File System Management Thread Stack Size"
-        default 2048
-        help
-          Set the stack size for the file system management thread. Default is 2048 bytes.
-
-    config FS_MGMT_THREAD_PRIORITY
-        int "File System Management Thread Priority"
-        default 6
-        help
-          Set the priority for the file system management thread. Default is 6.
-
-    if SOC_SERIES_NRF52X
-        config PM_PARTITION_REGION_LITTLEFS_EXTERNAL
-            default y
-
-        config PM_PARTITION_SIZE_LITTLEFS
-            default 0x1000000
-    endif # SOC_SERIES_NRF52X
-
-    config FS_LITTLEFS_READ_SIZE
-        default 256
-    config FS_LITTLEFS_PROG_SIZE
-        default 256
-    config FS_LITTLEFS_CACHE_SIZE
-        default 4096
-    config FS_LITTLEFS_LOOKAHEAD_SIZE
-        default 512
-
-    module = FS_MGMT
-    module-str = fs_mgmt
+if FW_MGMT
+    config MCUBOOT_UTIL_LOG_LEVEL_ERR
+    # config CONFIG_MCUMGR_GRP_IMG
+    #     default y
+    module = FW_MGMT
+    module-str = fw_mgmt
    source "subsys/logging/Kconfig.template.log_config"
-endif # FS_MGMT
+endif # FW_MGMT
--- a/firmware/libs/fw_mgmt/include/fw_mgmt.h
+++ b/firmware/libs/fw_mgmt/include/fw_mgmt.h
@@ -0,0 +1,23 @@
+#ifndef FW_MGMT_H
+#define FW_MGMT_H
+
+#include <zephyr/kernel.h>
+
+typedef enum
+{
+    FW_STATE_CONFIRMED = 0x00,
+    FW_STATE_PENDING = 0x01,
+    FW_STATE_TESTING = 0x02,
+    FW_STATE_UNKNOWN = 0xFF
+} fw_state_t;
+
+const char *fw_mgmt_get_fw_version_string(void);
+const char *fw_mgmt_get_kernel_version_string(void);
+const char *fw_mgmt_get_board_name();
+const char *fw_mgmt_get_board_revision();
+const char *fw_mgmt_get_soc_name();
+int fw_mgmt_get_id(uint8_t *buffer, size_t length);
+ssize_t fw_mgmt_get_slot1_size(void);
+
+fw_state_t fw_mgmt_get_fw_state(void);
+#endif /* FW_MGMT_H */
--- a/firmware/libs/fw_mgmt/src/fw_mgmt.c
+++ b/firmware/libs/fw_mgmt/src/fw_mgmt.c
@@ -0,0 +1,79 @@
+#include <zephyr/kernel.h>
+#include <zephyr/logging/log.h>
+#include <zephyr/dfu/mcuboot.h>
+#include <zephyr/drivers/hwinfo.h>
+#include <zephyr/mgmt/mcumgr/grp/img_mgmt/img_mgmt.h>
+#include <version.h>
+#include <app_version.h>
+
+#include "fw_mgmt.h"
+
+#define SLOT1_PARTITION_SIZE DT_REG_SIZE(DT_NODELABEL(slot1_partition))
+
+static char fw_version_string[] = APP_VERSION_STRING;
+static char kernel_version_string[] = KERNEL_VERSION_STRING;
+static char board_name[] = CONFIG_BOARD;
+static char board_revision[] = CONFIG_BOARD_REVISION;
+static char soc_name[] = CONFIG_SOC;
+static uint8_t hwid[8];
+
+LOG_MODULE_REGISTER(fw_mgmt, CONFIG_FW_MGMT_LOG_LEVEL);
+
+const char* fw_mgmt_get_fw_version_string(void)
+{
+    return (const char*)fw_version_string;
+}
+
+const char* fw_mgmt_get_kernel_version_string(void)
+{
+    return (const char*)kernel_version_string;
+}
+
+const char* fw_mgmt_get_board_name(void)
+{
+    return (const char*)board_name;
+}
+
+const char* fw_mgmt_get_board_revision(void)
+{
+    return (const char*)board_revision;
+}
+
+const char* fw_mgmt_get_soc_name(void)
+{
+    return (const char*)soc_name;
+}
+
+int fw_mgmt_get_id(uint8_t *buffer, size_t length)
+{
+    int ret = hwinfo_get_device_id(hwid, length);
+    if (ret < 0) {
+        LOG_ERR("Failed to get device EUI64: %d", ret);
+        return ret;
+    }
+
+    memcpy(buffer, hwid, sizeof(hwid));
+    return ret;
+}
+
+fw_state_t fw_mgmt_get_fw_state(void)
+{
+    if (!boot_is_img_confirmed()) {
+        return FW_STATE_TESTING;
+    }
+     int swap_type = mcuboot_swap_type();
+    if (swap_type == BOOT_SWAP_TYPE_NONE) {
+        return FW_STATE_CONFIRMED;
+    } else if (swap_type == BOOT_SWAP_TYPE_TEST) {
+        return FW_STATE_PENDING;
+    } else {
+        LOG_ERR("Unexpected swap type: %d", swap_type);
+        return FW_STATE_UNKNOWN; // Fallback auf bestätigten Zustand bei unerwartetem Swap-Typ
+    }
+    return FW_STATE_UNKNOWN; // Fallback, sollte nie erreicht werden
+}
+
+ssize_t fw_mgmt_get_slot1_size(void)
+{
+    return SLOT1_PARTITION_SIZE;
+}
--- a/firmware/prj.conf
+++ b/firmware/prj.conf
@@ -1,33 +1,34 @@
 ### Logging
 CONFIG_LOG=y

-### Bootloader
-CONFIG_BOOTLOADER_MCUBOOT=y
-
 ### File System
 CONFIG_FS_MGMT=y
-# CONFIG_FS_MGMT_LOG_LEVEL_DBG=y
 CONFIG_FS_LOG_LEVEL_WRN=y

 ### Bluetooth
 CONFIG_BLE_MGMT=y
-
 # Advertising 500ms - 1s
 CONFIG_BLE_MGMT_ADV_INT_MIN=160
 CONFIG_BLE_MGMT_ADV_INT_MAX=320

-## Buzzer protocol
+### Firmware Management
+CONFIG_FW_MGMT=y
+CONFIG_FW_MGMT_LOG_LEVEL_DBG=y
+CONFIG_HW_STACK_PROTECTION=y
+CONFIG_RESET_ON_FATAL_ERROR=y
+
+### Buzzer protocol
 CONFIG_BUZZ_PROTO=y
 CONFIG_BUZZ_PROTO_LOG_LEVEL_DBG=y

 ## Power management
 CONFIG_PM_DEVICE=y

-## Shell
-# CONFIG_SHELL=y
-# CONFIG_FILE_SYSTEM_SHELL=y
+# ## Shell
+# # CONFIG_SHELL=y
+# # CONFIG_FILE_SYSTEM_SHELL=y

-# Airtime-Maximierung
+# # Airtime-Maximierung
 CONFIG_BT_CTLR_SDC_MAX_CONN_EVENT_LEN_DEFAULT=4000000

 # MTU-Setup
@@ -58,3 +59,8 @@ CONFIG_BT_PERIPHERAL_PREF_MIN_INT=12
 CONFIG_BT_PERIPHERAL_PREF_MAX_INT=40
 CONFIG_BT_PERIPHERAL_PREF_LATENCY=0
 CONFIG_BT_PERIPHERAL_PREF_TIMEOUT=400
+
+
+CONFIG_HEAP_MEM_POOL_SIZE=2048
+
+CONFIG_BT_CENTRAL=n
--- a/firmware/src/main.c
+++ b/firmware/src/main.c
@@ -5,6 +5,7 @@
 #include "fs_mgmt.h"
 #include "ble_mgmt.h"
 #include "buzz_proto.h"
+#include "fw_mgmt.h"

 LOG_MODULE_REGISTER(main);

@@ -44,7 +45,13 @@ void ble_rx_cb(const uint8_t *data, uint16_t len)

 int main(void)
 {
-    LOG_INF("Starting app on %s (SOC: %s)", CONFIG_BOARD, CONFIG_SOC);
+    uint8_t hw_id[8];
+    LOG_INF("Starting app version %s (state: 0x%02x zephyr %s) on %s (Rev: %s, SOC: %s)", fw_mgmt_get_fw_version_string(), fw_mgmt_get_fw_state(), fw_mgmt_get_kernel_version_string(), fw_mgmt_get_board_name(), strlen(fw_mgmt_get_board_revision()) ? fw_mgmt_get_board_revision() : "N/A", fw_mgmt_get_soc_name());
+    if (fw_mgmt_get_id(hw_id, sizeof(hw_id)) >= 0) {
+        LOG_INF("Device EUI64: %02X%02X-%02X%02X-%02X%02X-%02X%02X", hw_id[0], hw_id[1], hw_id[2], hw_id[3], hw_id[4], hw_id[5], hw_id[6], hw_id[7]);
+    } else {
+        LOG_ERR("Failed to get device ID");
+    }

    int rc;
    
--- a/firmware/sysbuild/mcuboot.conf
+++ b/firmware/sysbuild/mcuboot.conf
@@ -1,5 +1,4 @@
 CONFIG_LOG=y
-CONFIG_MCUBOOT_LOG_LEVEL_DBG=y
 # CONFIG_MCUBOOT_SERIAL=y
 CONFIG_UART_CONSOLE=y
 # CONFIG_SINGLE_APPLICATION_SLOT=n
--- a/firmware/sysbuild/mcuboot.overlay
+++ b/firmware/sysbuild/mcuboot.overlay
@@ -1,7 +1,7 @@
 / {
  aliases {
-		mcuboot-button0 = &button1;
-		mcuboot-led0 = &led1;
+		mcuboot-button0 = &button0;
+		mcuboot-led0 = &led0;
  };
 };

--- a/protocol.md
+++ b/protocol.md
@@ -3,7 +3,7 @@
 Stand: 2026-03-18  
 Quelle: aktueller Implementierungsstand aus Firmware (`buzz_proto`, `fs_mgmt`, `ble_mgmt`) und Web-Client (`transport`, `parser`).

-## 1. Ziel und Scope
+## Ziel und Scope

 Das Buzzer Protocol ist ein binäres Frame-Protokoll für Host <-> Device Kommunikation.

@@ -19,7 +19,7 @@ Nicht produktiv implementiert:
 - `DEVICE_INFO` (`0x02`)
 - Firmware-Update (`FW_*`, `FW_UPDATE`)

-## 2. Transport und Grundregeln
+## Transport und Grundregeln

 - Alle Integer-Felder sind Little Endian.
 - Jedes Frame hat einen 3-Byte Header.
@@ -32,9 +32,9 @@ BLE Service UUIDs:
 - RX: `e517d988-bab5-4574-8479-97c6cb115ca1`
 - TX: `e517d988-bab5-4574-8479-97c6cb115ca2`

-## 3. Frame-Format
+## Frame-Format

-### 3.1 Header
+### Header

 ```c
 uint8_t  frame_type;
@@ -42,7 +42,7 @@ uint16_t payload_length; // LE
 ```


-### 3.2 Paketstruktur
+### Paketstruktur

 ```mermaid
 ---
@@ -54,7 +54,7 @@ packet
 +40: "Payload (variable length)"
 ```

-### 3.3 Maximalgröße
+### Maximalgröße

 Firmware-Buffer ist slab-basiert (`CONFIG_BUZZ_PROTO_SLAB_SIZE`).  
 Der effektive Chunk für Transfers wird zusätzlich durch den Transport limitiert. Bei Bluetooth sind das zum Beispiel 3 Bytes:
@@ -65,7 +65,7 @@ Der effektive Chunk für Transfers wird zusätzlich durch den Transport limitier

 Das Protokoll ist so ausgelegt, dass es mit mindestens 100 Bytes auskommen sollte.

-## 4. Frame-Typen
+## Frame-Typen

 | Wert | Name | Richtung | Bedeutung |
 |---|---|---|---|
@@ -84,13 +84,14 @@ Das Protokoll ist so ausgelegt, dass es mit mindestens 100 Bytes auskommen sollt
 | `0x41` | `LS_ENTRY` | Device -> Host | Verzeichniseintrag |
 | `0x42` | `LS_END` | Device -> Host | Ende Verzeichnis-Stream |

-## 5. Data-Typen (`REQUEST`)
+## Data-Typen (`REQUEST`)

 | Wert | Name | Status | Beschreibung |
 |---|---|---|---|
 | `0x01` | `PROTO_INFO` | aktiv | Protokollversion + max Chunkgröße |
-| `0x02` | `DEVICE_INFO` | reserviert | aktuell nicht bedient |
+| `0x02` | `DEVICE_INFO` | aktiv | Device-Infos (Board, Revision, SOC, ID) |
 | `0x03` | `FS_INFO` | aktiv | Dateisystem- und Pfadinfos |
+| `0x04` | `FW_INFO` | aktiv | Info über Firmware-Status und -Version sowie Kernelversion |
 | `0x20` | `FILE_GET` | aktiv | Datei vom Device streamen |
 | `0x21` | `FILE_PUT` | aktiv | Datei zum Device hochladen |
 | `0x22` | `TAGS_GET` | aktiv | nur Tag-Bereich streamen |
@@ -100,9 +101,9 @@ Das Protokoll ist so ausgelegt, dass es mit mindestens 100 Bytes auskommen sollt
 | `0x30` | `FW_UPDATE` | reserviert | aktuell nicht bedient |
 | `0x40` | `LS` | aktiv | Verzeichnisliste starten |

-## 6. Request/Response-Formate
+## Request/Response-Formate

-## 6.1 Generischer Request
+### Generischer Request

 ```c
 uint8_t data_type;
@@ -126,7 +127,7 @@ packet
 +32: "Optional payload (variable length)"
 ```

-## 6.2 `PROTO_INFO` (`0x01`)
+### `PROTO_INFO` (`0x01`)

 Request: keine Zusatzdaten.

@@ -150,7 +151,24 @@ packet
 +16: "Max Chunk Size (LE)"
 ```

-## 6.3 `FS_INFO` (`0x03`)
+### `DEVICE_INFO` (`0x02`)
+
+Request: keine Zusatzdaten.
+
+Respone-Payload:
+
+```c
+uint8_t    data_type;  // 0x02
+uint8_t[8] device_id;
+uint8_t    board_len;
+uint8_t    rev_len;
+uint8_t    soc_len;
+uint8_t    data[];     // board, rev und soc, ohne Nullterminierung
+```
+
+***Hinweis:*** In der aktuellen implementierung werden die Strings auf eine maximale Länge von 32 Zeichen beschränkt. Dies sollte für alle Fälle genügen.
+
+### `FS_INFO` (`0x03`)

 Request: keine Zusatzdaten.

@@ -163,7 +181,7 @@ uint32_t free_size;         // LE
 uint8_t  max_path_length;
 uint8_t  sys_path_length;
 uint8_t  audio_path_length;
-uint8_t  data[];            // sys_path + audio_path (beide nicht nullterminiert)
+uint8_t  data[];            // sys_path + audio_path ohne Nullterminierung
 ```

 Im `data` folgen sich System- und Audiopfad ohne Abstand, und ohne 0-Terminierung (`\0`). Beispiel für Systempfad `/lfs/sys`und Audiopfad `/lfs/a`:
@@ -213,7 +231,23 @@ Das Beispiel schaut in HEX so aus:
 0x2F 0x6C 0x66 0x73 0x2F 0x73 0x79 0x73 0x2F 0x6C 0x66 0x73 0x2F 0x61
 ```

-## 6.4 `LS` (`0x40`)
+### `FW_INFO` (`0x04`)
+
+Request: keine Zusatzdaten
+
+Response:
+
+```c
+uint8_t fw_status;           /* 0x00: Confirmed, 0x01: Pending, 0x02: Testing, 0xFF: Unbekannt */
+uint32_t slot1_size;         /* (LE) Grösse des Firmware Update Slots */
+uint8_t fw_version_len;      /* Länge des Firmware-Versionsstring */
+uint8_t kernel_version_len;  /* Länge des Kernel-Versionsstrings */
+uint8_t data[];              /* FW-Version und Kernelversion, ohne Nullterminierung */
+```
+
+***Hinweis:*** in der Aktuellen implementierung werden die Versionen auf 32 Zeichen limitiert.
+
+### `LS` (`0x40`)

 Request-Payload:

@@ -222,7 +256,7 @@ uint8_t data_type; // 0x40
 char    path[];    // ohne Nullterminierung
 ```

-## 6.5 `FILE_GET` (`0x20`) und `TAGS_GET` (`0x22`)
+### `FILE_GET` (`0x20`) und `TAGS_GET` (`0x22`)

 Request-Payload:

@@ -233,7 +267,7 @@ char    path[];    // ohne Nullterminierung

 Antwort ist ein Stream aus `FILE_START` -> `FILE_CHUNK`* -> `FILE_END`.

-## 6.6 `FILE_PUT` (`0x21`) und `TAGS_PUT` (`0x23`)
+### `FILE_PUT` (`0x21`) und `TAGS_PUT` (`0x23`)

 Request-Payload:

@@ -247,7 +281,7 @@ Danach sendet der Host:
 - `FILE_CHUNK` Frames
 - abschließend `FILE_END` mit CRC32

-## 6.7 `RM_FILE` (`0x24`)
+### `RM_FILE` (`0x24`)

 Request-Payload:

@@ -257,7 +291,7 @@ uint8_t path_length;
 char    path[];       // ohne Nullterminierung
 ```

-## 6.8 `RENAME_FILE` (`0x25`)
+### `RENAME_FILE` (`0x25`)

 Request-Payload:

@@ -268,9 +302,9 @@ uint8_t new_path_length;
 char    paths[];         // old_path + new_path (jeweils ohne Nullterminierung)
 ```

-## 7. ACK / ERROR / SUCCESS
+## ACK / ERROR / SUCCESS

-## 7.1 ACK (`0x11`)
+### ACK (`0x11`)

 Payload:

@@ -285,7 +319,7 @@ Wichtig: Es gibt zwei Semantiken je nach Richtung.
 - Upload (`FILE_PUT`, `TAGS_PUT`):  
  Device -> Host, Credits sind zusätzlich gewährte Tokens (Host addiert sie).

-## 7.2 ERROR (`0x12`)
+### ERROR (`0x12`)

 Payload:

@@ -310,7 +344,7 @@ Häufige Codes:
 | `116` | `ETIMEDOUT` | Credit-/Stream-Timeout |
 | `134` | `ENOTSUP` | nicht unterstützt |

-## 7.3 SUCCESS (`0x13`)
+### SUCCESS (`0x13`)

 Payload:

@@ -320,9 +354,7 @@ uint8_t data_type; // erfolgreich abgeschlossener Befehl

 Wird derzeit u.a. für `FILE_PUT`, `TAGS_PUT`, `RM_FILE`, `RENAME_FILE` genutzt.

-## 8. Stream-Sequenzen (Mermaid)
-
-## 8.1 Verzeichnisliste (`LS`)
+## Verzeichnisliste (`LS`)

 ```mermaid
 sequenceDiagram
@@ -346,7 +378,7 @@ sequenceDiagram

 Hinweis zum aktuellen Web-Client (März 2026): Für `LS` wird initial `ACK(64)` gesendet, ein dynamisches Nachfüllen ist noch nicht implementiert. Große Verzeichnisse können deshalb in `ETIMEDOUT` laufen.

-## 8.2 Datei-/Tag-Download (`FILE_GET`, `TAGS_GET`)
+## Datei-/Tag-Download (`FILE_GET`, `TAGS_GET`)

 ```mermaid
 sequenceDiagram
@@ -369,7 +401,7 @@ sequenceDiagram
 	Note over Host: CRC prüfen
 ```

-## 8.3 Datei-/Tag-Upload (`FILE_PUT`, `TAGS_PUT`)
+## Datei-/Tag-Upload (`FILE_PUT`, `TAGS_PUT`)

 ```mermaid
 sequenceDiagram
@@ -395,9 +427,9 @@ sequenceDiagram
 	end
 ```

-## 9. Payload-Frames im Detail
+## Payload-Frames im Detail

-## 9.1 `LS_ENTRY` (`0x41`)
+### `LS_ENTRY` (`0x41`)

 ```c
 uint8_t  type;         // 0x00 file, 0x01 dir
@@ -406,13 +438,13 @@ uint8_t  name_length;
 char     name[];       // ohne Nullterminierung
 ```

-## 9.2 `LS_END` (`0x42`)
+### `LS_END` (`0x42`)

 ```c
 uint32_t total_entries; // LE
 ```

-## 9.3 `FILE_START` (`0x20`)
+### `FILE_START` (`0x20`)

 ```c
 uint32_t total_size; // LE
@@ -421,19 +453,19 @@ uint32_t total_size; // LE
 `FILE_GET`: komplette Dateigröße.  
 `TAGS_GET`: nur Tag-Teil der Datei.

-## 9.4 `FILE_CHUNK` (`0x21`)
+### `FILE_CHUNK` (`0x21`)

 Payload sind rohe Nutzdatenbytes.

-## 9.5 `FILE_END` (`0x22`)
+### `FILE_END` (`0x22`)

 ```c
 uint32_t crc32; // LE, IEEE CRC32
 ```

-## 10. Beispiel-Frames (Hex)
+## Beispiel-Frames (Hex)

-## 10.1 `PROTO_INFO` Request/Response
+### `PROTO_INFO` Request/Response

 Request:

@@ -454,7 +486,7 @@ Interpretation:
 - `01 00`: Version 1
 - `FD 00`: max_chunk_size = 253

-## 10.2 `LS` Request für `/a`
+### `LS` Request für `/a`

 ```text
 00 03 00 40 2F 61
@@ -466,7 +498,7 @@ Interpretation:
 - `40`: data_type LS
 - `2F 61`: `/a`

-## 11. Implementierungsnotizen
+### Implementierungsnotizen

 - Unknown `REQUEST.data_type` wird aktuell mit `ERROR(EINVAL)` beantwortet.
 - Unbekannte/unerwartete `frame_type` im aktiven Protokollthread führen zu `ERROR(EPROTO)`.
--- a/webpage/.prettierrc
+++ b/webpage/.prettierrc
@@ -4,7 +4,7 @@
  "singleAttributePerLine": false,
  "overrides": [
    {
-      "files": ["*.svelte", "*.astro"],
+      "files": ["*.svelte", "*.astro", "*.ts", "*.js", "*.tsx", "*.jsx"],
      "options": {
        "printWidth": 100
      }
--- a/webpage/src/components/AudioDropzone.svelte
+++ b/webpage/src/components/AudioDropzone.svelte
@@ -0,0 +1,456 @@
+<script lang="ts">
+  import { GearIcon, CloudArrowUpIcon, InfoIcon, CaretDownIcon } from "phosphor-svelte";
+  import { slide, fade } from "svelte/transition";
+  import { addToast } from "../lib/toast";
+  import { processAudioFile } from "../lib/audioProcessor";
+  import { saveLocalFile } from "../lib/db";
+  import { refreshLocal } from "../lib/sync";
+  import { updateLocalAudioFormat, updateLocalAudioCrc } from "../lib/tagHandler";
+  import { audioOptions } from "../lib/store";
+  import { AUDIO_PRESETS, type AudioPresetName } from "../lib/settings";
+  import { tooltip } from "../lib/actions/tooltip";
+  import { clickOutside } from "../lib/actions/clickOutside"; // Angenommen, diese Action existiert bereits (analog zu Ihren anderen Menüs).
+
+  let isFileDragOver = false;
+  let showSettings = false;
+  let showPresetDropdown = false; // Neuer Zustand für das Custom Dropdown
+
+  // Definitionen der Preset-Infos für Tooltips im Dropdown
+  const presetInfos: Record<AudioPresetName, { name: string; desc: string }> = {
+    normal: { name: "Normal", desc: "Für natürliche Sprache. Moderate Verdichtung." },
+    broadcast: { name: "Broadcast", desc: "Aggressiv, sehr laut (Radio-Style). Maximale Präsenz." },
+    custom: { name: "Benutzerdefiniert", desc: "Manuelle Anpassung aller Kompressor-Parameter." },
+  };
+
+  // Reagiert auf Preset-Wechsel
+  function handlePresetChange(preset: AudioPresetName) {
+    $audioOptions.preset = preset;
+    showPresetDropdown = false; // Dropdown nach Auswahl schließen
+
+    if (preset !== "custom") {
+      const p = AUDIO_PRESETS[preset];
+      $audioOptions = {
+        ...$audioOptions,
+        compressorThreshold: p.compressorThreshold!,
+        compressorRatio: p.compressorRatio!,
+        compressorKnee: p.compressorKnee!,
+        compressorAttack: p.compressorAttack!,
+        compressorRelease: p.compressorRelease!,
+      };
+    }
+  }
+
+  // Setzt das Preset automatisch auf Custom, sobald ein Slider bewegt wird
+  function setCustomPreset() {
+    $audioOptions.preset = "custom";
+  }
+
+  async function handleDrop(event: DragEvent) {
+    isFileDragOver = false;
+    showSettings = false;
+    showPresetDropdown = false; // Dropdown sicherheitshalber schließen
+
+    const files = event.dataTransfer?.files;
+    if (!files || files.length === 0) return;
+
+    const fileArray = Array.from(files);
+
+    const audioFiles = fileArray.filter((file) => file.type.startsWith("audio/"));
+    const rawFiles = fileArray.filter((file) => file.type === ""); // Ohne MIME-Type
+
+    if (audioFiles.length > 0 || rawFiles.length > 0) {
+      // 1. Reguläre Dateien umwandeln & taggen
+      for (const file of audioFiles) {
+        try {
+          const { buffer, name } = await processAudioFile(file, $audioOptions);
+          await saveLocalFile(name, new Blob([buffer]), buffer.byteLength);
+
+          await updateLocalAudioFormat(name, { codec: 0, bitDepth: 16, sampleRate: 16000 });
+          await updateLocalAudioCrc(name);
+
+          addToast(`Gespeichert & Getaggt: ${name}`, "success");
+        } catch (err) {
+          addToast(`Fehler bei ${file.name}: ${err}`, "error");
+        }
+      }
+
+      // 2. Rohdaten bypassen (direkt speichern & taggen)
+      for (const file of rawFiles) {
+        try {
+          const name = file.name;
+          await saveLocalFile(name, file, file.size);
+
+          // TagHandler erkennt alte Tags automatisch und fügt System-Tags sicher hinzu
+          await updateLocalAudioFormat(name, { codec: 0, bitDepth: 16, sampleRate: 16000 });
+          await updateLocalAudioCrc(name);
+
+          addToast(`Roh-Datei importiert: ${name}`, "success");
+        } catch (err) {
+          addToast(`Fehler bei Roh-Import ${file.name}: ${err}`, "error");
+        }
+      }
+      refreshLocal();
+    } else {
+      addToast("Keine gültigen Dateien gefunden.", "error");
+    }
+  }
+</script>
+
+<svelte:window
+  on:keydown={(e) => {
+    if (e.key === "Escape") showSettings = false;
+  }}
+/>
+
+<section class="buzzer-card flex flex-col h-full transition-all duration-300 min-w-[320px]">
+  <div class="card-header" class:blur={isFileDragOver}>
+    <h3 class="card-title">Dateiverarbeitung</h3>
+    <button class="btn" aria-label="Einstellungen" on:click={() => (showSettings = !showSettings)}>
+      <GearIcon class="icon" />
+    </button>
+  </div>
+
+  <div
+    class="card-body flex flex-col flex-1"
+    role="region"
+    aria-label="Audiofile dropzone"
+    on:dragenter={() => (isFileDragOver = true)}
+    on:dragleave={() => (isFileDragOver = false)}
+    on:dragover|preventDefault
+    on:drop|preventDefault={handleDrop}
+  >
+    {#if !showSettings}
+      <div
+        class="flex justify-center items-center pointer-events-none p-4 pb-0"
+        in:fade={{ duration: 200 }}
+      >
+        <div
+          class="text-center text-2xs tracking-tight font-mono font-semibold transition-all"
+          class:blur={isFileDragOver}
+        >
+          <span class={$audioOptions.lowCut ? "text-emerald-500" : "text-text-muted"}>LOW CUT</span>
+          |
+          <span class={$audioOptions.compress ? "text-emerald-500" : "text-text-muted"}>
+            COMPRESSOR
+          </span>
+          |
+          <span class={$audioOptions.normalize ? "text-emerald-500" : "text-text-muted"}>
+            NORMALIZER
+          </span>
+        </div>
+      </div>
+
+      <div class="flex-1 p-4 pt-2">
+        <div
+          in:fade={{ duration: 200 }}
+          class="flex h-full items-center justify-center border-2 border-dashed rounded-lg pointer-events-none transition-all duration-300 min-h-[8rem]"
+          class:border-slate-300={!isFileDragOver}
+          class:border-indigo-500={isFileDragOver}
+          class:bg-indigo-50={isFileDragOver}
+        >
+          <div class="relative flex size-24 transition-transform" class:scale-110={isFileDragOver}>
+            <span
+              class="absolute inline-flex h-full w-full opacity-50"
+              class:animate-ping={isFileDragOver}
+              class:text-indigo-500={isFileDragOver}
+              class:text-transparent={!isFileDragOver}
+            >
+              <CloudArrowUpIcon class="w-full h-full" />
+            </span>
+            <span
+              class="relative inline-flex size-24 transition-colors"
+              class:text-slate-500={!isFileDragOver}
+              class:text-indigo-600={isFileDragOver}
+            >
+              <CloudArrowUpIcon class="w-full h-full transition-colors" />
+            </span>
+          </div>
+        </div>
+      </div>
+    {:else}
+      <div class="flex-1 flex flex-col bg-white h-full" in:slide={{ duration: 300 }}>
+        <div
+          class="flex items-center justify-between px-4 pt-4 pb-2 border-b border-slate-100 mb-4"
+        >
+          <h4 class="font-semibold text-sm text-slate-800">Audio-Optionen</h4>
+        </div>
+
+        <div class="space-y-5 flex-1 overflow-y-auto px-4 pb-4">
+          <div class="flex flex-col gap-2">
+            <div class="flex items-center gap-2">
+              <div
+                use:tooltip={{
+                  text: "Entfernt tieffrequentes Rumpeln (Wind, Trittschall). Schont kleine Lautsprecher und verhindert Verzerrungen.",
+                  pos: "right",
+                }}
+              >
+                <InfoIcon class="text-text-muted size-4" />
+              </div>
+              <label class="flex items-center space-x-2 text-sm font-medium cursor-pointer flex-1">
+                <input
+                  type="checkbox"
+                  bind:checked={$audioOptions.lowCut}
+                  class="accent-indigo-600"
+                />
+                <span>Low-Cut Filter</span>
+              </label>
+            </div>
+            {#if $audioOptions.lowCut}
+              <div class="pl-6 flex items-center gap-3">
+                <span class="text-xs text-text-muted w-10 text-right">
+                  {$audioOptions.lowCutFreq} Hz
+                </span>
+                <input
+                  type="range"
+                  min="50"
+                  max="300"
+                  step="10"
+                  bind:value={$audioOptions.lowCutFreq}
+                  class="flex-1 accent-indigo-500 h-1"
+                />
+              </div>
+            {/if}
+          </div>
+
+          <div class="flex flex-col gap-2">
+            <div class="flex items-center gap-2">
+              <div
+                use:tooltip={{
+                  text: "Gleicht Lautstärkeunterschiede an. Macht leise Passagen lauter und fängt laute Spitzen ab.",
+                  pos: "right",
+                }}
+              >
+                <InfoIcon class="text-text-muted size-4" />
+              </div>
+              <label class="flex items-center space-x-2 text-sm font-medium cursor-pointer flex-1">
+                <input
+                  type="checkbox"
+                  bind:checked={$audioOptions.compress}
+                  class="accent-indigo-600"
+                />
+                <span>Dynamik-Kompressor</span>
+              </label>
+            </div>
+
+            {#if $audioOptions.compress}
+              <div class="pl-6 flex flex-col gap-3">
+                <div class="relative" use:clickOutside={() => (showPresetDropdown = false)}>
+                  <button
+                    type="button"
+                    class="flex items-center justify-between w-full text-sm border border-slate-300 rounded p-1.5 bg-slate-50 hover:bg-slate-100 transition"
+                    on:click={() => (showPresetDropdown = !showPresetDropdown)}
+                  >
+                    <div class="flex items-center gap-2">
+                      <div
+                        use:tooltip={{ text: presetInfos[$audioOptions.preset].desc, pos: "right" }}
+                      >
+                        <InfoIcon class="text-text-muted size-4" />
+                      </div>
+                      <span>Preset: {presetInfos[$audioOptions.preset].name}</span>
+                    </div>
+                    <span class:rotate-180={showPresetDropdown}>
+                      <CaretDownIcon class="size-4 text-slate-500 transition-transform" />
+                    </span>
+                  </button>
+
+                  {#if showPresetDropdown}
+                    <div
+                      class="absolute top-full left-0 right-0 mt-1 bg-white border border-slate-200 rounded-md shadow-lg z-20 overflow-hidden"
+                      transition:fade={{ duration: 150 }}
+                    >
+                      {#each Object.entries(presetInfos) as [key, info]}
+                        <button
+                          type="button"
+                          class="flex items-center gap-2 w-full text-left text-sm px-3 py-2 hover:bg-indigo-50 transition"
+                          class:bg-indigo-100={$audioOptions.preset === key}
+                          class:font-medium={$audioOptions.preset === key}
+                          on:click={() => handlePresetChange(key as AudioPresetName)}
+                        >
+                          <div use:tooltip={{ text: info.desc, pos: "right" }}>
+                            <InfoIcon class="text-text-muted size-4" />
+                          </div>
+                          <span>{info.name}</span>
+                        </button>
+                      {/each}
+                    </div>
+                  {/if}
+                </div>
+
+                <div class="grid grid-cols-1 gap-2 text-xs">
+                  <div
+                    class="flex items-center gap-2"
+                    class:opacity-50={$audioOptions.preset !== "custom"}
+                  >
+                    <span
+                      class="w-20 cursor-help"
+                      use:tooltip={{
+                        text: "Pegel, ab dem der Kompressor zu arbeiten beginnt.",
+                        pos: "right",
+                      }}
+                    >
+                      Threshold
+                    </span>
+                    <span class="text-text-muted w-16 text-right">
+                      {$audioOptions.compressorThreshold} dB
+                    </span>
+                    <input
+                      type="range"
+                      min="-60"
+                      max="0"
+                      step="1"
+                      bind:value={$audioOptions.compressorThreshold}
+                      disabled={$audioOptions.preset !== "custom"}
+                      on:input={setCustomPreset}
+                      class="flex-1 accent-indigo-500 h-1"
+                    />
+                  </div>
+                  <div
+                    class="flex items-center gap-2"
+                    class:opacity-50={$audioOptions.preset !== "custom"}
+                  >
+                    <span
+                      class="w-20 cursor-help"
+                      use:tooltip={{
+                        text: "Stärke der Pegelreduzierung oberhalb des Thresholds.",
+                        pos: "right",
+                      }}
+                    >
+                      Ratio
+                    </span>
+                    <span class="text-text-muted w-16 text-right">
+                      {$audioOptions.compressorRatio}:1
+                    </span>
+                    <input
+                      type="range"
+                      min="1"
+                      max="20"
+                      step="1"
+                      bind:value={$audioOptions.compressorRatio}
+                      disabled={$audioOptions.preset !== "custom"}
+                      on:input={setCustomPreset}
+                      class="flex-1 accent-indigo-500 h-1"
+                    />
+                  </div>
+                  <div
+                    class="flex items-center gap-2"
+                    class:opacity-50={$audioOptions.preset !== "custom"}
+                  >
+                    <span
+                      class="w-20 cursor-help"
+                      use:tooltip={{
+                        text: "Reaktionszeit des Kompressors auf Pegelüberschreitungen.",
+                        pos: "right",
+                      }}
+                    >
+                      Attack
+                    </span>
+                    <span class="text-text-muted w-16 text-right">
+                      {($audioOptions.compressorAttack * 1000).toFixed(0)} ms
+                    </span>
+                    <input
+                      type="range"
+                      min="0.001"
+                      max="0.1"
+                      step="0.001"
+                      bind:value={$audioOptions.compressorAttack}
+                      disabled={$audioOptions.preset !== "custom"}
+                      on:input={setCustomPreset}
+                      class="flex-1 accent-indigo-500 h-1"
+                    />
+                  </div>
+                  <div
+                    class="flex items-center gap-2"
+                    class:opacity-50={$audioOptions.preset !== "custom"}
+                  >
+                    <span
+                      class="w-20 cursor-help"
+                      use:tooltip={{
+                        text: "Zeit, bis der Kompressor nach Unterschreitung des Thresholds aufhört zu arbeiten.",
+                        pos: "right",
+                      }}
+                    >
+                      Release
+                    </span>
+                    <span class="text-text-muted w-16 text-right">
+                      {($audioOptions.compressorRelease * 1000).toFixed(0)} ms
+                    </span>
+                    <input
+                      type="range"
+                      min="0.01"
+                      max="1"
+                      step="0.01"
+                      bind:value={$audioOptions.compressorRelease}
+                      disabled={$audioOptions.preset !== "custom"}
+                      on:input={setCustomPreset}
+                      class="flex-1 accent-indigo-500 h-1"
+                    />
+                  </div>
+                </div>
+              </div>
+            {/if}
+          </div>
+
+          <div class="flex flex-col gap-2">
+            <div class="flex items-center gap-2">
+              <div
+                use:tooltip={{
+                  text: "Hebt das verarbeitete Signal linear an, bis der lauteste Peak exakt den Zielwert erreicht.",
+                  pos: "right",
+                }}
+              >
+                <InfoIcon class="text-text-muted size-4" />
+              </div>
+              <label class="flex items-center space-x-2 text-sm font-medium cursor-pointer flex-1">
+                <input
+                  type="checkbox"
+                  bind:checked={$audioOptions.normalize}
+                  class="accent-indigo-600"
+                />
+                <span>Lautstärke normalisieren</span>
+              </label>
+            </div>
+            {#if $audioOptions.normalize}
+              <div class="pl-6 flex items-center gap-3">
+                <span class="text-xs text-text-muted w-10 text-right">
+                  {$audioOptions.normalizeTargetDb} dB
+                </span>
+                <input
+                  type="range"
+                  min="-10"
+                  max="0"
+                  step="0.1"
+                  bind:value={$audioOptions.normalizeTargetDb}
+                  class="flex-1 accent-indigo-500 h-1"
+                />
+              </div>
+            {/if}
+          </div>
+
+          <div class="text-xs text-text-muted bg-slate-100 p-3 rounded mt-4">
+            Hinweis: Die Konvertierung zu 16kHz Mono PCM erfolgt immer automatisch beim Speichern.
+          </div>
+        </div>
+      </div>
+    {/if}
+  </div>
+</section>
+
+<style>
+  @reference "../styles/app.css";
+
+  .btn {
+    @apply rounded-full transition-colors border-0 p-2;
+
+    &:not(:disabled) {
+      @apply hover:bg-slate-200 hover:shadow-sm;
+    }
+  }
+
+  /* Styling für die Range-Slider */
+  input[type="range"] {
+    @apply cursor-pointer;
+  }
+  input[type="range"]:disabled {
+    @apply cursor-not-allowed;
+  }
+</style>
--- a/webpage/src/components/DeviceInfo.svelte
+++ b/webpage/src/components/DeviceInfo.svelte
@@ -1,54 +1,145 @@
 <script lang="ts">
-    import FlashUsage from "./FlashUsage.svelte"
-    import { BatteryEmptyIcon, BatteryLowIcon, BatteryMediumIcon, BatteryHighIcon, BatteryFullIcon, BatteryChargingIcon } from "phosphor-svelte"
-    
+  import FlashUsage from "./FlashUsage.svelte";
+  import { deviceInfo, fwInfo } from "../lib/store";
+  import { FW_STATUS } from "../lib/protocol/constants";
+  import { tooltip } from "../lib/actions/tooltip";
+  import {
+    CheckCircleIcon,
+    WarningIcon,
+    BatteryEmptyIcon,
+    BatteryLowIcon,
+    BatteryMediumIcon,
+    BatteryHighIcon,
+    BatteryFullIcon,
+    BatteryChargingIcon,
+  } from "phosphor-svelte";
+</script>
+
 <div class="text-sm">
-<div class="text-sm">
-    <table>
-        <tbody>
-            <tr>
-                <td class="key">
-                    Modell
-                </td>
-                <td class="value">
-                    nrf52840dk-prototyp
-                </td>
-            </tr>
-            <tr>
-                <td class="key">
-                    Version
-                </td>
-                <td class="value">
-                    2.3.22-debug
-                </td>
-            </tr>
-            <tr>
-                <td class="key">
-                    HW-ID
-                </td>
-                <td class="value">
-                    <span class="font-mono">DEAD-BEAF-0102-3456</span>
-                </td>
-            </tr>
-            <tr>
-                <td class="key">
-                    Batterie
-                </td>
-                <td class="value flex items-center gap-2">
-                    85% <BatteryChargingIcon weight="bold" class="w-5 h-5"/> 1200mAh
-                </td>
-            </tr>
-            <tr>
-                <td class="key">
-                    Speicher
-                </td>
-                <td class="value">
-                    <div class="py-1">
-                        <FlashUsage/>
-                    </div>
-                </td>
-            </tr>
-        </tbody>
+  <table>
+    <tbody>
+      <tr>
+        <td class="key">Modell</td>
+        <td class="value">
+          {#if $deviceInfo}
+            {$deviceInfo.boardName}
+            {#if $deviceInfo.boardRevision}
+              <span class="text-muted">>Rev. {$deviceInfo.boardRevision}</span>
+            {/if}
+          {:else}
+            unbekannt
+          {/if}
+        </td>
+      </tr>
+      <tr>
+        <td class="key">Version</td>
+        <td class="value flex items-center gap-1">
+          {#if $fwInfo}
+            <span
+              use:tooltip={{
+                text: `Die Firmware-Slotgrösse beträgt <span class="font-medium">${$fwInfo.slot1Size / 1024} kB</span>. Wieso musst Du das wissen? Edi sorgt schon dafür, dass die Updates nicht zu gross sind.<br/> <div class="text-3xl align-center text-center pb-2">😈</div>`,
+                pos: "bottom",
+              }}
+            >
+              {$fwInfo.fwVersion}
+            </span>
+            {#if $fwInfo.fwStatus === FW_STATUS.CONFIRMED}
+              <span
+                use:tooltip={{
+                  text: "Firmware ist bestätigt und damit dauerhaft nutzbar",
+                  pos: "bottom",
+                }}
+                class="relative flex size-5"
+              >
+                <CheckCircleIcon
+                  weight="fill"
+                  class="text-emerald-500 relative inline-flex h-full w-full"
+                />
+              </span>
+              {:else if $fwInfo.fwStatus === FW_STATUS.PENDING}
+              <span
+                use:tooltip={{
+                  text: "Firmware ist nur hochgeladen und noch nicht bestätigt. Du kannst sie nach einem <b>reboot</b> testen. Wenn sie funktioniert, bestätige sie, damit sie dauerhaft nutzbar ist.<br/><b><i>Achtung:</i></b> der Reboot dauert einen Moment, da die Firmware erst umkopiert werden muss.",
+                  pos: "bottom",
+                }}
+                class="relative flex size-5"
+              >
+                <WarningIcon
+                  weight="fill"
+                  class="text-amber-500 absolute inline-flex h-full w-full animate-ping"
+                />
+                <WarningIcon
+                  weight="fill"
+                  class="text-amber-500 relative inline-flex h-full w-full"
+                />
+              </span>
+              {:else if $fwInfo.fwStatus === FW_STATUS.TESTING}
+              <span
+                use:tooltip={{
+                  text: "Die Firmware ist im Testmodus. Wenn sie gut funktioniert, dann <b>bestätige</b> sie, damit sie dauerhaft nutzbar ist. Wenn sie nicht richtig funktioniert, dann kannst Du den Buzzer <b>rebooten</b>, er kehrt dann zur vorhergehenden Version zurück.<br/><b><i>Achtung:</i></b> der Reboot dauert einen Moment, da die Firmware erst umkopiert werden muss.",
+                  pos: "bottom",
+                }}
+                class="relative flex size-5"
+              >
+                <WarningIcon
+                  weight="fill"
+                  class="text-amber-600 absolute inline-flex h-full w-full animate-ping"
+                />
+                <WarningIcon
+                  weight="fill"
+                  class="text-amber-600 relative inline-flex h-full w-full"
+                />
+              </span>
+              {:else if $fwInfo.fwStatus === FW_STATUS.UNKNOWN}
+              <span
+                use:tooltip={{
+                  text: `Die Firmware hat den unbekannten Status <span class="bold font-mono">0x${$fwInfo.fwStatus.toString(16).padStart(2, "0").toUpperCase()}.</span> Weiss der Teufel, was da wieder passiert ist... Vielleicht hilft ein Reboot? Oder Firmware neu flashen? Oder... hast Du ne Idee???`,
+                  pos: "bottom",
+                }}
+                class="relative flex size-5"
+              >
+                <WarningIcon
+                  weight="fill"
+                  class="text-red-500 absolute inline-flex h-full w-full animate-ping"
+                />
+                <WarningIcon
+                  weight="fill"
+                  class="text-red-500 relative inline-flex h-full w-full"
+                />
+              </span>
+            {/if}
+            <span class="text-text-muted ml-1">(Zephyr {$fwInfo.kernelVersion})</span>
+          {:else}
+            unbekannt
+          {/if}
+        </td>
+      </tr>
+      <tr>
+        <td class="key">HW-ID</td>
+        <td class="value">
+          {#if $deviceInfo}
+            <span class="font-mono">{$deviceInfo.deviceId}</span>
+          {:else}
+            unbekannt
+          {/if}
+        </td>
+      </tr>
+      <tr>
+        <td class="key">Batterie</td>
+        <td class="value flex items-center gap-2">
+          85% <BatteryChargingIcon weight="bold" class="w-5 h-5" /> 1200mAh
+        </td>
+      </tr>
+      <tr>
+        <td class="key">Speicher</td>
+        <td class="value">
+          <div class="py-1">
+            <FlashUsage />
+          </div>
+        </td>
+      </tr>
+    </tbody>
+  </table>
 </div>

 <style>
--- a/webpage/src/components/FileListItem.svelte
+++ b/webpage/src/components/FileListItem.svelte
@@ -28,7 +28,7 @@
  import { tagEditorState } from "../lib/store";
  import { tooltip } from "../lib/actions/tooltip";
  import { deleteRemoteFile } from "../lib/transport";
-  import { deleteLocalFile } from "../lib/db";
+  import { deleteLocalFile, playLocalFile } from "../lib/db";
  import { refreshRemote, refreshLocal } from "../lib/sync";
  import { addToast } from "../lib/toast";

@@ -56,6 +56,7 @@
      case SyncState.UNKNOWN:
        return {
          icon: QuestionIcon,
+          weight: "fill",
          color: "text-amber-500",
          variant: "warning",
          text: "Prüfsumme fehlt. Bitte Metadaten aktualisieren.",
@@ -63,20 +64,24 @@
      case SyncState.SINGLE_SIDED:
        return {
          icon: CircleIcon,
-          color: "text-green-600",
+          weight: "bold",
+          color: "text-emerald-600",
          variant: "info",
          text: `Datei existiert nur ${type === "buzzer" ? "auf dem Buzzer" : "lokal"}.`,
        };
      case SyncState.SYNCED:
        return {
          icon: CheckCircleIcon,
-          color: "text-green-600",
+          weight: "fill",
+          color: "text-emerald-500",
          variant: "info",
          text: "Datei ist synchronisiert.",
        };
      case SyncState.CONFLICT:
        return {
          icon: WarningIcon,
+          ping: true,
+          weight: "fill",
          color: "text-amber-600",
          variant: "warning",
          text: `Konflikt: Name/Tags weichen ab. Vergleiche mit <span class="text-medium text-on-surface bg-white rounded px-1">${syncStatus.linkedFiles[0]}</span>  ${type === "buzzer" ? "lokal" : "auf dem Buzzer"}`,
@@ -88,6 +93,8 @@
            : `Mehrfach vorhanden: Gleicher Inhalt auch in <span class="text-medium text-on-surface bg-white rounded px-1">${syncStatus.linkedFiles.join("</span>  <span class='text-medium text-on-surface bg-white rounded px-1'>")}</span>`;
        return {
          icon: WarningCircleIcon,
+          ping: true,
+          weight: "fill",
          color: "text-red-600",
          variant: "danger",
          text: duplicateText,
@@ -158,6 +165,7 @@
    ></div>
  {/if}

+  <!-- svelte-ignore a11y_mouse_events_have_key_events -->
  <button
    class="relative z-10 w-full text-left flex-1 px-3 py-1 pr-16 flex items-center border-l-4 transition-colors border-b border-b-border-card
         {file.selected ? 'border-l-blue-600' : 'border-l-transparent'}
@@ -169,11 +177,15 @@
         {$isTransferingRemote ? 'cursor-default' : ''}
         {state === 'pending' ? 'grayscale opacity-80' : ''}"
    on:click={toggleSelection}
+    on:mouseenter|stopPropagation={() => (menuOpen = true)}
+    on:mouseleave|stopPropagation={() => (menuOpen = false)}
+    on:blur|stopPropagation={() => (menuOpen = false)}
+    on:focus|stopPropagation={() => (menuOpen = true)}
    disabled={$isTransferingRemote}
  >
-    <MusicNotesIcon weight="fill" class="mr-3 w-5 h-5 shrink-0" />
+    <MusicNotesIcon weight="fill" class="mr-2 w-5 h-5 shrink-0" />

-    <div class="flex flex-col flex-1 min-w-0 overflow-hidden">
+    <div class="flex flex-col flex-1 min-w-0 overflow-hidden pl-1">
      <div class="flex items-center min-w-0">
        <span class="font-light truncate min-w-0 text-sm">
          {file.name || "Unbekannte Datei"}
@@ -193,11 +205,26 @@
              variant: statusConfig.variant,
            }}
          >
-            <svelte:component
-              this={statusConfig.icon}
-              weight="fill"
-              class="mr-1 shrink-0 w-3.5 h-3.5 {statusConfig.color}"
-            />
+            {#if statusConfig.ping}
+              <span class="mr-1 relative inline-flex size-3.5">
+                <svelte:component
+                  this={statusConfig.icon}
+                  weight={statusConfig.weight ? statusConfig.weight : "fill"}
+                  class="opacity-57 text-amber-600 absolute inline-flex h-full w-full animate-ping"
+                />
+                <svelte:component
+                  this={statusConfig.icon}
+                  weight={statusConfig.weight ? statusConfig.weight : "fill"}
+                  class="shrink-0 w-3.5 h-3.5 {statusConfig.color}"
+                />
+              </span>
+            {:else}
+              <svelte:component
+                this={statusConfig.icon}
+                weight={statusConfig.weight ? statusConfig.weight : "fill"}
+                class="mr-1 shrink-0 w-3.5 h-3.5 {statusConfig.color}"
+              />
+            {/if}
          </span>
        {/if}

@@ -222,26 +249,32 @@
    </div>
  </button>

-  <div class="menu-btn-grp group/menu" class:is-open={menuOpen}>
+  <!-- svelte-ignore a11y_no_static_element_interactions -->
+  <!-- svelte-ignore a11y_mouse_events_have_key_events -->
+  <div
+    class="menu-btn-grp group/menu"
+    class:is-open={menuOpen}
+    on:mouseout|stopPropagation={() => (menuOpen = false)}
+  >
    <div
      class="flex items-center overflow-hidden transition-all duration-300 ease-in-out
             {menuOpen
        ? 'max-w-[120px] opacity-100'
        : 'max-w-0 opacity-0 group-hover/menu:max-w-[120px] group-hover/menu:opacity-100'}"
    >
-      <button
-        class="menu-btn danger"
-        title="Löschen"
-        on:click|stopPropagation={handleDeleteClick}
-      >
+      <button class="menu-btn danger" title="Löschen" on:click|stopPropagation={handleDeleteClick}>
        <TrashIcon class="list-menu-icon" />
      </button>
      <button
        class="menu-btn"
        title="Abspielen"
        on:click|stopPropagation={() => {
-          console.log("Play", file.name);
-          menuOpen = false;
+          if (type === "buzzer") {
+            addToast;
+          } else {
+            playLocalFile(file.name);
+            menuOpen = false;
+          }
        }}
      >
        <PlayIcon class="list-menu-icon" />
--- a/webpage/src/components/MainGrid.svelte
+++ b/webpage/src/components/MainGrid.svelte
@@ -10,6 +10,7 @@
  import FileMenuOverlay from "./FileMenuOverlay.svelte";
  import FileTagEditor from "./FileTagEditor.svelte";
  import FileListMenu from "./FileListMenu.svelte";
+  import AudioDropzone from "./AudioDropzone.svelte";

  let showOverlay = false;
  let isTransferFinished = false;
@@ -18,6 +19,7 @@
  let showBuzzerMenu = false;
  let editModeType: "local" | "buzzer" | null = null;
  let fileToEdit: string | null = null;
+  let isFileDragOver = false;

  $: currentDevice = $pairedDevices.find((d) => d.id === $activeDeviceId);

@@ -57,26 +59,7 @@
 </script>

 <div class="main-layout mt-16 lg:mt-20 pb-12">
-  <section class="buzzer-card flex flex-col">
-    <div class="card-header">
-      <h3 class="card-title">Dateiverarbeitung</h3>
-      <button class="btn" aria-label="Einstellungen">
-        <GearIcon class="icon" />
-      </button>
-    </div>
-    <div class="card-body p-4">
-      <div class="flex justify-center items-center">
-        <div class="text-center text-2xs tracking-tight font-mono font-semibold">
-          16kHz 16bit MONO | <span class="text-emerald-700">NORMALIZER ON</span>
-          |
-          <span class="text-red-700">COMPRESSOR OFF</span>
-        </div>
-      </div>
-      <div class="flex items-center justify-center">
-        <CloudArrowUpIcon class="w-24 h-24 text-slate-500" />
-      </div>
-    </div>
-  </section>
+  <AudioDropzone />

  <section class="buzzer-card flex flex-col">
    <div class="card-header">
--- a/webpage/src/lib/actions/clickOutside.ts
+++ b/webpage/src/lib/actions/clickOutside.ts
@@ -0,0 +1,23 @@
+export function clickOutside(node: HTMLElement, callback: () => void) {
+  const handleClick = (event: MouseEvent | TouchEvent) => {
+    // Prüfen, ob der Klick auf ein Element außerhalb des Containers erfolgte
+    if (node && !node.contains(event.target as Node) && !event.defaultPrevented) {
+      callback();
+    }
+  };
+
+  // Event-Listener in der Capture-Phase hinzufügen (true)
+  document.addEventListener('click', handleClick, true);
+  document.addEventListener('touchstart', handleClick, { passive: true, capture: true });
+
+  return {
+    update(newCallback: () => void) {
+      callback = newCallback;
+    },
+    destroy() {
+      // Event-Listener beim Zerstören der Komponente entfernen
+      document.removeEventListener('click', handleClick, true);
+      document.removeEventListener('touchstart', handleClick, true);
+    }
+  };
+}
--- a/webpage/src/lib/audioProcessor.ts
+++ b/webpage/src/lib/audioProcessor.ts
@@ -0,0 +1,131 @@
+export interface AudioProcessingOptions {
+  lowCut: boolean;
+  lowCutFreq: number;
+  compress: boolean;
+  compressorThreshold: number;
+  compressorRatio: number;
+  compressorKnee: number;
+  compressorAttack: number;
+  compressorRelease: number;
+  normalize: boolean;
+  normalizeTargetDb: number;
+}
+
+export const DEFAULT_AUDIO_OPTIONS: AudioProcessingOptions = {
+  lowCut: true,
+  lowCutFreq: 150,
+  compress: true,
+  compressorThreshold: -45, // Drastisch gesenkt: Erfasst auch sehr leises Flüstern
+  compressorRatio: 8,       // Starke Kompression (8:1)
+  compressorKnee: 10,       // Härterer Übergang (Hard Knee), damit der Kompressor direkter zupackt
+  compressorAttack: 0.005,  // Etwas langsamer (5ms), lässt die initialen Konsonanten für die Sprachverständlichkeit durch
+  compressorRelease: 0.15,  // Schnelleres Release (150ms), zieht leise Passagen zwischen Wörtern schneller hoch
+  normalize: true,
+  normalizeTargetDb: -0.5,
+};
+
+/**
+ * Konvertiert Float32 Samples (-1.0 bis 1.0) in Int16 PCM (-32768 bis 32767)
+ */
+function floatToInt16(float32Data: Float32Array): Int16Array {
+  const int16Data = new Int16Array(float32Data.length);
+  for (let i = 0; i < float32Data.length; i++) {
+    // Hard-Clipping verhindern, falls Signale leicht übersteuern
+    const s = Math.max(-1, Math.min(1, float32Data[i]));
+    int16Data[i] = s < 0 ? s * 0x8000 : s * 0x7FFF;
+  }
+  return int16Data;
+}
+
+/**
+ * Führt eine Peak-Normalisierung basierend auf einem dBFS-Zielwert durch.
+ */
+function applyNormalization(buffer: AudioBuffer, targetDb: number) {
+  const data = buffer.getChannelData(0);
+  let maxPeak = 0;
+
+  // 1. Höchsten absoluten Peak finden
+  for (let i = 0; i < data.length; i++) {
+    const absValue = Math.abs(data[i]);
+    if (absValue > maxPeak) maxPeak = absValue;
+  }
+
+  // 2. Multiplikator berechnen und anwenden
+  if (maxPeak > 0) {
+    const targetLinear = Math.pow(10, targetDb / 20);
+    const factor = targetLinear / maxPeak;
+    
+    for (let i = 0; i < data.length; i++) {
+      data[i] *= factor;
+    }
+  }
+}
+
+export async function processAudioFile(
+  file: File,
+  // Partial bedeutet: Es müssen nicht alle Felder übergeben werden
+  userOptions: Partial<AudioProcessingOptions> = {} 
+): Promise<{ buffer: ArrayBuffer; name: string }> {
+  
+  // Fügt die Standardwerte mit den User-Werten zusammen. 
+  // Was der User nicht mitschickt, wird durch Defaults aufgefüllt.
+  const options = { ...DEFAULT_AUDIO_OPTIONS, ...userOptions };
+  
+  // Cast auf ArrayBuffer, um TypeScript bzgl. SharedArrayBuffer zu beruhigen
+  const rawArrayBuffer = await file.arrayBuffer() as ArrayBuffer;
+  
+  const audioCtx = new window.AudioContext();
+  const sourceBuffer = await audioCtx.decodeAudioData(rawArrayBuffer);
+
+  // Ziel-Kontext: Exakt 16kHz, Mono (1 Kanal), Länge berechnet aus Originaldauer
+  const offlineCtx = new window.OfflineAudioContext(1, sourceBuffer.duration * 16000, 16000);
+
+  const source = offlineCtx.createBufferSource();
+  source.buffer = sourceBuffer;
+
+  let lastNode: AudioNode = source;
+
+  // 1. Low-Cut Filter (Highpass)
+  if (options.lowCut) {
+    const filter = offlineCtx.createBiquadFilter();
+    filter.type = "highpass";
+    // Jetzt ist options.lowCutFreq garantiert eine Zahl
+    filter.frequency.setValueAtTime(options.lowCutFreq, offlineCtx.currentTime);
+    lastNode.connect(filter);
+    lastNode = filter;
+  }
+
+  // 2. Dynamics Compressor
+  if (options.compress) {
+    const compressor = offlineCtx.createDynamicsCompressor();
+    // Hier knallt es nicht mehr, weil options.compressorThreshold existiert
+    compressor.threshold.setValueAtTime(options.compressorThreshold, offlineCtx.currentTime);
+    compressor.knee.setValueAtTime(options.compressorKnee, offlineCtx.currentTime);
+    compressor.ratio.setValueAtTime(options.compressorRatio, offlineCtx.currentTime);
+    compressor.attack.setValueAtTime(options.compressorAttack, offlineCtx.currentTime);
+    compressor.release.setValueAtTime(options.compressorRelease, offlineCtx.currentTime);
+    
+    lastNode.connect(compressor);
+    lastNode = compressor;
+  }
+  console.log("AudioProcessor: Audioeffekte angewendet", { options });
+  // Kette abschließen und Rendering starten
+  lastNode.connect(offlineCtx.destination);
+  source.start(0);
+
+  const renderedBuffer = await offlineCtx.startRendering();
+
+  // 3. Normalisierung 
+  if (options.normalize) {
+    applyNormalization(renderedBuffer, options.normalizeTargetDb);
+  }
+
+  // 4. In Zielformat (16-bit PCM) wandeln
+  const pcm16 = floatToInt16(renderedBuffer.getChannelData(0));
+
+  return {
+    buffer: pcm16.buffer as ArrayBuffer,
+    // Original-Dateiendung entfernen
+    name: file.name.replace(/\.[^/.]+$/, "")
+  };
+}
--- a/webpage/src/lib/db.ts
+++ b/webpage/src/lib/db.ts
@@ -59,7 +59,7 @@ export async function deleteLocalFile(name: string): Promise<void> {
    });
 }

-export async function getLocalFile(name: string): Promise<{name: string, blob: Blob, size: number} | undefined> {
+export async function getLocalFile(name: string): Promise<{ name: string, blob: Blob, size: number } | undefined> {
    const db = await initDB();
    return new Promise((resolve, reject) => {
        const tx = db.transaction(STORE_NAME, 'readonly');
@@ -70,3 +70,64 @@ export async function getLocalFile(name: string): Promise<{name: string, blob: B
        request.onerror = () => reject(request.error);
    });
 }
+
+let currentSource: AudioBufferSourceNode | null = null;
+
+export async function playLocalFile(name: string): Promise<void> {
+    // Falls bereits etwas spielt: Stoppen und aufräumen
+    if (currentSource) {
+        try {
+            currentSource.stop();
+        } catch (e) {
+            // Ignorieren, falls die Quelle bereits natürlich gestoppt war
+        }
+        currentSource = null;
+    }
+
+    const fileEntry = await getLocalFile(name);
+    if (!fileEntry) throw new Error('Datei nicht gefunden');
+
+    const fullBuffer = await fileEntry.blob.arrayBuffer();
+    let audioByteLength = fullBuffer.byteLength;
+
+    // Metadaten-Limit berechnen (Footer an EOF - 8)
+    if (fullBuffer.byteLength >= 8) {
+        const view = new DataView(fullBuffer);
+        const footerOffset = fullBuffer.byteLength - 8;
+        const magic = new TextDecoder().decode(new Uint8Array(fullBuffer, footerOffset + 4, 4));
+        
+        if (magic === "TAG!") {
+            const totalTagSize = view.getUint16(footerOffset, true); //
+            if (totalTagSize <= fullBuffer.byteLength) {
+                audioByteLength = fullBuffer.byteLength - totalTagSize;
+            }
+        }
+    }
+
+    const numSamples = Math.floor(audioByteLength / 2);
+    const int16Data = new Int16Array(fullBuffer, 0, numSamples);
+
+    const audioCtx = new (window.AudioContext || window.webkitAudioContext)();
+    const audioBuffer = audioCtx.createBuffer(1, numSamples, 16000);
+    const float32Data = audioBuffer.getChannelData(0);
+
+    for (let i = 0; i < numSamples; i++) {
+        float32Data[i] = int16Data[i] / 32768.0;
+    }
+
+    const source = audioCtx.createBufferSource();
+    source.buffer = audioBuffer;
+    source.connect(audioCtx.destination);
+    
+    // Referenz speichern, bevor wir starten
+    currentSource = source;
+
+    // Wenn die Datei natürlich endet, Referenz löschen
+    source.onended = () => {
+        if (currentSource === source) {
+            currentSource = null;
+        }
+    };
+
+    source.start();
+}
--- a/webpage/src/lib/protocol/constants.ts
+++ b/webpage/src/lib/protocol/constants.ts
@@ -24,7 +24,9 @@ export const FRAME = {

 export const DATA = {
    PROTO_INFO: 0x01,
+    DEVICE_INFO: 0x02,
    FS_INFO: 0x03,
+    FW_INFO: 0x04,

    FILE_GET: 0x20,
    FILE_PUT: 0x21,
@@ -57,3 +59,10 @@ export const ZEPHYR_ERRORS: Record<number, ZephyrError> = {
    88: { text: "Funktion im Buzzer nicht implementiert", zephyr: "ENOSYS" },
    134: { text: "Operation nicht unterstützt", zephyr: "ENOTSUP" }
 };
+
+export const FW_STATUS = {
+    CONFIRMED: 0x00,
+    PENDING: 0x01,
+    TESTING: 0x02,
+    UNKNOWN: 0xFF,
+}
--- a/webpage/src/lib/protocol/parser.ts
+++ b/webpage/src/lib/protocol/parser.ts
@@ -1,5 +1,5 @@
 import { FRAME, DATA, ZEPHYR_ERRORS } from './constants';
-import { protocolInfo, fsInfo, transferStats, resetTransferStats, transferDetails } from '../store';
+import { protocolInfo, deviceInfo, fsInfo, transferStats, fwInfo, resetTransferStats, transferDetails } from '../store';
 import { addToast } from '../toast';
 import { SETTINGS } from '../settings';
 import { crc32 } from './crc32';
@@ -48,20 +48,42 @@ export function parseIncomingFrame(view: DataView, sender: FrameSender) {
    switch (frameType) {
        case FRAME.RESPONSE:
            const dataType = view.getUint8(3);
-
-            if (dataType === DATA.PROTO_INFO && payloadLength >= 5) {
-                const version = view.getUint16(4, true);
-                const maxChunkSize = view.getUint16(6, true);
-                protocolInfo.set({ version, maxChunkSize });
-            } else if (dataType === DATA.FS_INFO && payloadLength >= 14) {
-                const totalSizeBytes = view.getUint32(4, true);
-                const freeSizeBytes = view.getUint32(8, true);
-                const maxPathLength = view.getUint8(12);
-                const sysPathLength = view.getUint8(13);
-                const audioPathLength = view.getUint8(14);
-                const sysPath = new TextDecoder().decode(new Uint8Array(view.buffer, 15, sysPathLength));
-                const audioPath = new TextDecoder().decode(new Uint8Array(view.buffer, 15 + sysPathLength, audioPathLength));
-                fsInfo.set({ totalSize: totalSizeBytes / 1024 / 1024, freeSize: freeSizeBytes / 1024 / 1024, maxPathLength, sysPath, audioPath });
+            switch (dataType) {
+                case DATA.PROTO_INFO:
+                    const version = view.getUint16(4, true);
+                    const maxChunkSize = view.getUint16(6, true);
+                    protocolInfo.set({ version, maxChunkSize });
+                    break;
+                case DATA.FS_INFO:
+                    const totalSizeBytes = view.getUint32(4, true);
+                    const freeSizeBytes = view.getUint32(8, true);
+                    const maxPathLength = view.getUint8(12);
+                    const sysPathLength = view.getUint8(13);
+                    const audioPathLength = view.getUint8(14);
+                    const sysPath = new TextDecoder().decode(new Uint8Array(view.buffer, 15, sysPathLength));
+                    const audioPath = new TextDecoder().decode(new Uint8Array(view.buffer, 15 + sysPathLength, audioPathLength));
+                    fsInfo.set({ totalSize: totalSizeBytes / 1024 / 1024, freeSize: freeSizeBytes / 1024 / 1024, maxPathLength, sysPath, audioPath });
+                    break;
+                case DATA.DEVICE_INFO:
+                    const deviceId = [0, 2, 4, 6]
+                        .map(offset => view.getUint16(4 + offset, false).toString(16).padStart(4, '0').toUpperCase())
+                        .join('-');
+                    const boardNameLength = view.getUint8(12);
+                    const boardRevisionLength = view.getUint8(13);
+                    const socNameLength = view.getUint8(14);
+                    const boardName = new TextDecoder().decode(new Uint8Array(view.buffer, 15, boardNameLength));
+                    const boardRevision = new TextDecoder().decode(new Uint8Array(view.buffer, 15 + boardNameLength, boardRevisionLength));
+                    const socName = new TextDecoder().decode(new Uint8Array(view.buffer, 15 + boardNameLength + boardRevisionLength, socNameLength));
+                    deviceInfo.set({ deviceId, boardName, boardRevision, socName });
+                    break;
+                case DATA.FW_INFO:
+                    const fwStatus = view.getUint8(4);
+                    const slot1Size = view.getUint32(5, true);
+                    const fw_version_length = view.getUint8(9);
+                    const kernel_version_length = view.getUint8(10);
+                    const fwVersion = new TextDecoder().decode(new Uint8Array(view.buffer, 11, fw_version_length));
+                    const kernelVersion = new TextDecoder().decode(new Uint8Array(view.buffer, 11 + fw_version_length, kernel_version_length));
+                    fwInfo.set({ fwStatus, slot1Size, fwVersion, kernelVersion });
            }
            break;

@@ -92,9 +114,10 @@ export function parseIncomingFrame(view: DataView, sender: FrameSender) {
                console.warn(`LS Stream: Erwartete Anzahl Einträge laut Header: ${total}, tatsächlich empfangen: ${lsBuffer.length}`);
                addToast(`Warnung: LS Stream erwartete ${total} Einträge, aber nur ${lsBuffer.length} empfangen.`, 'warning');
            } else if (lsResolve) {
-                lsResolve([...lsBuffer]);
+                const currentResolve = lsResolve;
                lsResolve = null;
                lsReject = null;
+                currentResolve([...lsBuffer]);
            }
            break;

@@ -137,10 +160,12 @@ export function parseIncomingFrame(view: DataView, sender: FrameSender) {

                        addToast("Dateitransfer abgebrochen (Timeout)", "error");

-                        if (fileGetReject) {
-                            fileGetReject(new Error("Timeout beim Dateitransfer"));
-                            fileGetResolve = null;
-                            fileGetReject = null;
+                        const currentReject = fileGetReject;
+                        fileGetResolve = null;
+                        fileGetReject = null;
+
+                        if (currentReject) {
+                            currentReject(new Error("Timeout beim Dateitransfer"));
                        }
                        return;
                    }
@@ -206,34 +231,39 @@ export function parseIncomingFrame(view: DataView, sender: FrameSender) {

                if (fileTransfer.mode === 'file') {
                    const fileName = get(transferStats).currentFileName;
+                    const currentResolve = fileGetResolve;
+                    const currentReject = fileGetReject;
+
+                    // Direkt hier aufräumen, um Race Conditions bei schnellen Folge-Transfers zu vermeiden
+                    fileGetResolve = null;
+                    fileGetReject = null;
+
                    saveLocalFile(fileName, fileBlob, fileTransfer.totalBytes)
                        .then(() => {
                            refreshLocal();
-                            if (fileGetResolve) {
-                                fileGetResolve({ success: true });
+                            if (currentResolve) {
+                                currentResolve({ success: true });
                            }
                        })
                        .catch(err => {
                            console.error("Datenbankfehler:", err);
                            addToast(`Speichern von ${fileName} fehlgeschlagen.`, 'error');
-                            if (fileGetReject) fileGetReject(err);
-                        })
-                        .finally(() => {
-                            fileGetResolve = null;
-                            fileGetReject = null;
+                            if (currentReject) currentReject(err);
                        });
                } else {
                    // TAGS Modus: Blob direkt zurückgeben, nichts speichern
-                    if (fileGetResolve) fileGetResolve({ success: true, blob: fileBlob });
+                    const currentResolve = fileGetResolve;
                    fileGetResolve = null;
                    fileGetReject = null;
+                    if (currentResolve) currentResolve({ success: true, blob: fileBlob });
                }
            } else {
                console.error("[CRC] Mismatch! Datei beschädigt.");
                addToast("CRC Fehler: Datei wurde fehlerhaft übertragen.", "error");
-                if (fileGetReject) fileGetReject(new Error("CRC Mismatch"));
+                const currentReject = fileGetReject;
                fileGetResolve = null;
                fileGetReject = null;
+                if (currentReject) currentReject(new Error("CRC Mismatch"));
            }
            break;

@@ -260,16 +290,18 @@ export function parseIncomingFrame(view: DataView, sender: FrameSender) {
            console.error(`Received error frame with code: 0x${errorCode.toString(16)}`);
            showErrorToast(errorCode);
            if (lsReject) {
-                lsReject(new Error(`Buzzer Error 0x${errorCode.toString(16)}`));
+                const currentReject = lsReject;
                lsResolve = null;
                lsReject = null;
+                currentReject(new Error(`Buzzer Error 0x${errorCode.toString(16)}`));
            }
            if (fileGetReject && fileTransfer.active) {
                if (fileTransfer.metricsTimer) clearInterval(fileTransfer.metricsTimer);
                fileTransfer.active = false;
-                fileGetReject(new Error(`Buzzer Error 0x${errorCode.toString(16)}`));
+                const currentReject = fileGetReject;
                fileGetResolve = null;
                fileGetReject = null;
+                currentReject(new Error(`Buzzer Error 0x${errorCode.toString(16)}`));
            }
            if (uploadState.active && uploadState.onError) {
                uploadState.onError(new Error(`Buzzer Error 0x${errorCode.toString(16)}`));
@@ -293,6 +325,17 @@ export function buildProtocolInfoRequest(): ArrayBuffer {
    return buffer;
 }

+export function buildDeviceInfoRequest(): ArrayBuffer {
+    const buffer = new ArrayBuffer(4);
+    const view = new DataView(buffer);
+
+    view.setUint8(0, FRAME.REQUEST);
+    view.setUint16(1, 1, true);
+    view.setUint8(3, DATA.DEVICE_INFO);
+
+    return buffer;
+}
+
 export function buildFSInfoRequest(): ArrayBuffer {
    const buffer = new ArrayBuffer(4);
    const view = new DataView(buffer);
@@ -304,6 +347,17 @@ export function buildFSInfoRequest(): ArrayBuffer {
    return buffer;
 }

+export function buildFWInfoRequest(): ArrayBuffer {
+    const buffer = new ArrayBuffer(4);
+    const view = new DataView(buffer);
+
+    view.setUint8(0, FRAME.REQUEST);
+    view.setUint16(1, 1, true);
+    view.setUint8(3, DATA.FW_INFO);
+
+    return buffer;
+}
+
 export function buildLSRequest(path: string): ArrayBuffer {
    const encoder = new TextEncoder();
    const pathBytes = encoder.encode(path);
@@ -342,9 +396,10 @@ function resetLsWatchdog() {
        addToast("Verzeichnis-Streaming abgebrochen (Timeout)", "warning");
        lsBuffer = [];
        if (lsReject) {
-            lsReject(new Error("Timeout beim Lesen des Verzeichnisses"));
+            const currentReject = lsReject;
            lsResolve = null;
            lsReject = null;
+            currentReject(new Error("Timeout beim Lesen des Verzeichnisses"));
        }
    }, 3000);
 }
--- a/webpage/src/lib/settings.ts
+++ b/webpage/src/lib/settings.ts
@@ -1,3 +1,5 @@
+import type { AudioProcessingOptions } from './types';
+
 export const SETTINGS = {
    storage: {
        connectionKey: 'buzzer_connection_state'
@@ -14,3 +16,31 @@ export const SETTINGS = {
        estimatedInterFileGapMs: 700, // Initialer Schätzwert für die Pause zwischen zwei Dateien
    },
 };
+
+export const AUDIO_PRESETS: Record<'normal' | 'broadcast', Partial<AudioProcessingOptions>> = {
+  normal: {
+    compressorThreshold: -45,
+    compressorRatio: 8,
+    compressorKnee: 10,
+    compressorAttack: 0.005,
+    compressorRelease: 0.15,
+  },
+  broadcast: {
+    // Noch aggressiver für maximale, konstante Lautstärke (Radio-Style)
+    compressorThreshold: -50,
+    compressorRatio: 12,
+    compressorKnee: 2,
+    compressorAttack: 0.002,
+    compressorRelease: 0.10,
+  }
+};
+
+export const DEFAULT_AUDIO_OPTIONS: AudioProcessingOptions = {
+  preset: 'normal',
+  lowCut: true,
+  lowCutFreq: 150,
+  compress: true,
+  ...AUDIO_PRESETS.normal, // Initialisierung mit Normal-Werten
+  normalize: true,
+  normalizeTargetDb: -0.5,
+} as AudioProcessingOptions;
--- a/webpage/src/lib/store.ts
+++ b/webpage/src/lib/store.ts
@@ -1,6 +1,6 @@
 import { writable, derived } from 'svelte/store';
-import{ type  BuzzerFile, SyncState, type SyncStatus } from './types';
-import { SETTINGS } from './settings';
+import{ type  BuzzerFile, SyncState, type SyncStatus, type AudioProcessingOptions } from './types';
+import {DEFAULT_AUDIO_OPTIONS, SETTINGS } from './settings';

 const CONNECTION_STATE_KEY = 'buzzer_connection_state';

@@ -31,6 +31,13 @@ export interface ProtocolInfo {
    maxChunkSize: number;
 }

+export interface DeviceInfo {
+    deviceId: string;
+    boardName: string;
+    boardRevision: string;
+    socName: string;
+}
+
 export interface FsInfo {
    totalSize: number;
    freeSize: number;
@@ -39,6 +46,13 @@ export interface FsInfo {
    audioPath: string;
 }

+export interface FwInfo {
+    fwStatus: number;
+    slot1Size: number;
+    fwVersion: string;
+    kernelVersion: string;
+}
+
 export interface StorageUsage {
    totalBytes: number;
    freeBytes: number;
@@ -65,9 +79,11 @@ export const targetDeviceId = writable<string | null>(null);
 export const pairedDevices = writable<BluetoothDevice[]>([]);
 export const availableDevices = writable<Set<string>>(new Set()); // IDs der derzeit advertisierten Geräte

-// Protokoll- und Dateisystem-Metadaten aus dem Device
+// Metadaten aus dem Device
 export const protocolInfo = writable<ProtocolInfo | null>(null);
+export const deviceInfo = writable<DeviceInfo | null>(null);
 export const fsInfo = writable<FsInfo | null>(null);
+export const fwInfo = writable<FwInfo | null>(null);

 // Dateilisten
 export const buzzerAudioFiles = writable<BuzzerFile[]>([]);
@@ -258,7 +274,9 @@ export function resetRemote(): void {
    isConnected.set(false);
    isConnecting.set(false);
    protocolInfo.set(null);
+    deviceInfo.set(null);
    fsInfo.set(null);
+    fwInfo.set(null);
    activeDeviceId.set(null);
    buzzerAudioFiles.set([]);
    buzzerSysFiles.set([]);
@@ -396,3 +414,28 @@ export const syncStateMap = derived(
        return result;
    }
 );
+
+function createAudioOptionsStore() {
+  // 1. Initialen Wert aus dem Local Storage laden
+  const stored = localStorage.getItem("edi_audio_options");
+  
+  // Merge aus Defaults und gespeicherten Werten, falls neue Felder hinzukommen
+  const initialValue: AudioProcessingOptions = stored
+    ? { ...DEFAULT_AUDIO_OPTIONS, ...JSON.parse(stored) }
+    : DEFAULT_AUDIO_OPTIONS;
+
+  const { subscribe, set, update } = writable<AudioProcessingOptions>(initialValue);
+
+  // 2. Bei jeder Änderung automatisch in den Local Storage schreiben
+  subscribe((currentValue) => {
+    localStorage.setItem("edi_audio_options", JSON.stringify(currentValue));
+  });
+
+  return {
+    subscribe,
+    set,
+    update,
+  };
+}
+
+export const audioOptions = createAudioOptionsStore();
--- a/webpage/src/lib/sync.ts
+++ b/webpage/src/lib/sync.ts
@@ -1,8 +1,7 @@
 import { get } from 'svelte/store';
-import { isConnected, fsInfo, buzzerAudioFiles, buzzerSysFiles, isTransferingRemote, isFetchingLocal, storageUsage, localAudioFiles, transferStats } from './store';
-import { requestProtocolInfo, requestFSInfo, fetchDirectory } from './transport';
+import { isConnected, deviceInfo, fsInfo, fwInfo, buzzerAudioFiles, buzzerSysFiles, isTransferingRemote, isFetchingLocal, storageUsage, localAudioFiles, transferStats } from './store';
+import { requestProtocolInfo, requestFSInfo, fetchDirectory, getFile, putFile, deleteRemoteFile, requestDeviceInfo, requestFWInfo } from './transport';
 import type { BuzzerFile } from './types';
-import { getFile, putFile, deleteRemoteFile } from './transport';
 import { addToast } from './toast';
 import { getLocalFiles, deleteLocalFile, getLocalFile } from './db';
 import { parseAudioFileTags } from './tagHandler';
@@ -28,6 +27,8 @@ export async function refreshRemote() {
    try {
        await requestProtocolInfo();
        await requestFSInfo();
+        await requestFWInfo();
+        await requestDeviceInfo();

        // Kurze Verzögerung für Store-Propagation
        await new Promise(r => setTimeout(r, 100));
--- a/webpage/src/lib/tagHandler.ts
+++ b/webpage/src/lib/tagHandler.ts
@@ -1,5 +1,5 @@
 import { getLocalFiles, saveLocalFile, deleteLocalFile } from './db';
-import type { SystemTags, MetadataTags } from './types';
+import type { SystemTags, MetadataTags, AudioFormat } from './types';
 import { addToast } from './toast';
 import { crc32 } from './protocol/crc32';
 import { getTags, putTags, renameRemoteFile } from './transport';
@@ -349,3 +349,21 @@ export async function updateLocalAudioCrc(filename: string): Promise<number> {

    return newCrc;
 }
+
+export async function updateLocalAudioFormat(filename: string, audioFormat: AudioFormat ): Promise<AudioFormat> {
+    const files = await getLocalFiles();
+    const record = files.find(f => f.name === filename);
+    if (!record) throw new Error(`Datei ${filename} nicht gefunden.`);
+
+    // Tags auslesen
+    const { sysTags, metaTags } = await parseAudioFileTags(record.blob, filename);
+
+    // Neue CRC berechnen
+    
+    console.log(`TagHandler: Aktualisiere Audioformat für ${filename}`, { oldFormat: sysTags.format, newFormat: audioFormat });
+    // Mit aktualisierter CRC speichern
+    const updatedSysTags = { ...sysTags, format: audioFormat };
+    await updateLocalFile(filename, filename, updatedSysTags, metaTags);
+
+    return audioFormat;
+}
--- a/webpage/src/lib/transport.ts
+++ b/webpage/src/lib/transport.ts
@@ -1,7 +1,7 @@
-import { buildLSRequest, buildProtocolInfoRequest, buildFSInfoRequest, setLsResolver, buildFileGetRequest, setFileGetResolver, buildTagsGetRequest, uploadState } from './protocol/parser';
+import { buildLSRequest, buildProtocolInfoRequest, buildDeviceInfoRequest, buildFSInfoRequest, buildFWInfoRequest, setLsResolver, buildFileGetRequest, setFileGetResolver, buildTagsGetRequest, uploadState } from './protocol/parser';
 import { crc32 } from './protocol/crc32';
 import { get } from 'svelte/store';
-import { protocolInfo, transferStats,  } from './store';
+import { protocolInfo, transferStats, } from './store';
 import { DATA, FRAME } from './protocol/constants';
 import { isConnected, resetRemote } from './store';
 import { SETTINGS } from './settings';
@@ -26,6 +26,8 @@ export async function handleTransportConnect(sender: FrameSender) {
        // Basis-Informationen zwingend vorab laden
        await requestProtocolInfo();
        await requestFSInfo();
+        await requestDeviceInfo();
+        await requestFWInfo();

        // Erst wenn diese Basisdaten da sind, wird die UI freigeschaltet
        isConnected.set(true);
@@ -44,10 +46,18 @@ export async function requestProtocolInfo() {
    await sendFrame(buildProtocolInfoRequest());
 }

+export async function requestDeviceInfo() {
+    await sendFrame(buildDeviceInfoRequest());
+}
+
 export async function requestFSInfo() {
    await sendFrame(buildFSInfoRequest());
 }

+export async function requestFWInfo() {
+    await sendFrame(buildFWInfoRequest());
+}
+
 let isListing = false;

 export async function fetchDirectory(path: string): Promise<any[]> {
--- a/webpage/src/lib/types.ts
+++ b/webpage/src/lib/types.ts
@@ -41,3 +41,17 @@ export interface SyncStatus {
    state: SyncState;
    linkedFiles: string[]; // Referenzen auf die Dateinamen der Gegenseite (für Tooltips)
 }
+
+export interface AudioProcessingOptions {
+  preset: 'normal' | 'broadcast' | 'custom';
+  lowCut: boolean;
+  lowCutFreq: number;
+  compress: boolean;
+  compressorThreshold: number;
+  compressorRatio: number;
+  compressorKnee: number;
+  compressorAttack: number;
+  compressorRelease: number;
+  normalize: boolean;
+  normalizeTargetDb: number;
+}