move files into firmware folder

Signed-off-by: Peter Siegmund <developer@mars3142.org>

firmware/components/remote_control/CMakeLists.txt

@@ -0,0 +1,12 @@
+idf_component_register(SRCS 
+                        "capability_service.c"
+                        "device_service.c"
+                        "led_service.c"
+                        "remote_control.c"
+                    INCLUDE_DIRS "include"
+                    PRIV_REQUIRES
+                        bt
+                        esp_app_format
+                        storage
+                        led_matrix
+)

firmware/components/remote_control/capability_service.c

@@ -0,0 +1,156 @@
+#include "capability_service.h"
+#include "esp_log.h"
+#include "storage.h"
+#include <string.h>
+#include <stdlib.h>           // For malloc, free
+#include "host/ble_hs.h"      // For ble_hs_mbuf_from_flat, ble_att_mtu
+#include "host/ble_uuid.h"    // For BLE_ATT_MTU_DFLT (often included via ble_hs.h)
+#include "nimble/nimble_port.h" // For os_mbuf related functions
+
+static const char *TAG_CS = "capability_service";
+
+#define CAPA_READ_CHUNK_SIZE 200 // Maximale Bytes pro Lesevorgang aus dem Storage
+
+int capa_read(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg)
+{
+    esp_err_t storage_status = storage_init();
+    if (storage_status != ESP_OK)
+    {
+        ESP_LOGE(TAG_CS, "Failed to initialize storage: %s", esp_err_to_name(storage_status));
+        const char *err_msg = "Error: Storage init failed";
+        os_mbuf_append(ctxt->om, err_msg, strlen(err_msg));
+        // storage_uninit() sollte hier nicht aufgerufen werden, da die Initialisierung fehlschlug.
+        return 0;
+    }
+
+    char *content = "";
+    os_mbuf_append(ctxt->om, content, strlen(content));
+    const char *filename = "/storage/capability.json"; // Die zu lesende Datei
+    char read_buffer[CAPA_READ_CHUNK_SIZE];
+    ssize_t bytes_read;
+    int os_err;
+
+    ESP_LOGI(TAG_CS, "Reading capabilities from %s", filename);
+
+    // Schleife, um die Datei in Chunks zu lesen und an den mbuf anzuhängen
+    while ((bytes_read = storage_read(filename, read_buffer, sizeof(read_buffer))) > 0)
+    {
+        ESP_LOGD(TAG_CS, "Read %zd bytes from storage", bytes_read);
+        // Den gelesenen Chunk an den BLE-Antwortpuffer anhängen
+        os_err = os_mbuf_append(ctxt->om, read_buffer, bytes_read);
+        if (os_err != 0)
+        {
+            ESP_LOGE(TAG_CS, "Failed to append to mbuf (error %d). May be out of space.", os_err);
+            // Der mbuf könnte voll sein. Stoppe das Anhängen.
+            // Bereits angehängte Daten werden gesendet.
+            break;
+        }
+    }
+
+    // Fehlerbehandlung oder EOF
+    if (bytes_read < 0)
+    {
+        ESP_LOGE(TAG_CS, "Error reading from storage (file: %s, error_code: %zd)", filename, bytes_read);
+        // Wenn noch nichts angehängt wurde, sende eine Fehlermeldung.
+        if (ctxt->om->om_len == 0)
+        {
+            const char *err_msg = "Error: Failed to read capability data";
+            // Hier könnten spezifischere Fehlermeldungen basierend auf bytes_read eingefügt werden
+            os_mbuf_append(ctxt->om, err_msg, strlen(err_msg));
+        }
+    }
+    else
+    { // bytes_read == 0, bedeutet EOF (Ende der Datei)
+        ESP_LOGI(TAG_CS, "Successfully read and appended all data from %s to mbuf.", filename);
+    }
+
+    storage_uninit();
+    return 0;
+}
+
+int capa_char_1979_user_desc(uint16_t con_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg)
+{
+    const char *desc = "Capabilities of the device";
+    os_mbuf_append(ctxt->om, desc, strlen(desc));
+    return 0;
+}
+
+void capa_notify_data(uint16_t conn_handle, uint16_t char_val_handle)
+{
+    esp_err_t storage_status = storage_init();
+    if (storage_status != ESP_OK)
+    {
+        ESP_LOGE(TAG_CS, "Notify: Failed to initialize storage: %s", esp_err_to_name(storage_status));
+        return;
+    }
+
+    const char *filename = "/storage/capability.json";
+
+    uint16_t mtu = ble_att_mtu(conn_handle);
+    if (mtu == 0) { // Should not happen for an active connection, fallback
+        ESP_LOGW(TAG_CS, "Notify: ble_att_mtu returned 0, using default MTU %d.", BLE_ATT_MTU_DFLT);
+        mtu = BLE_ATT_MTU_DFLT;
+    }
+
+    // Max payload for notification is MTU - 3 (1 byte opcode for Notification, 2 bytes attribute handle)
+    size_t notify_chunk_size = (mtu > 3) ? (mtu - 3) : (BLE_ATT_MTU_DFLT - 3); // Ensure mtu > 3
+
+    // Further cap by CAPA_READ_CHUNK_SIZE if it's smaller and meant as an upper limit for any single read op
+    if (notify_chunk_size > CAPA_READ_CHUNK_SIZE) {
+        notify_chunk_size = CAPA_READ_CHUNK_SIZE;
+    }
+
+    if (notify_chunk_size == 0) { // Safety check
+        ESP_LOGE(TAG_CS, "Notify: Calculated notify_chunk_size is 0. Aborting.");
+        storage_uninit();
+        return;
+    }
+
+    char *read_buffer = malloc(notify_chunk_size);
+    if (!read_buffer)
+    {
+        ESP_LOGE(TAG_CS, "Notify: Failed to allocate read_buffer (%zu bytes)", notify_chunk_size);
+        storage_uninit();
+        return;
+    }
+
+    ESP_LOGI(TAG_CS, "Notify: Reading capabilities from %s to notify conn %u, attr %u (chunk size %zu, MTU %u)",
+             filename, conn_handle, char_val_handle, notify_chunk_size, mtu);
+
+    FILE *fp = fopen(filename, "r");
+    if (!fp)
+    {
+        ESP_LOGE(TAG_CS, "Notify: Failed to open %s for reading.", filename);
+        free(read_buffer);
+        storage_uninit();
+        return;
+    }
+
+    ssize_t bytes_read;
+    while ((bytes_read = fread(read_buffer, 1, notify_chunk_size, fp)) > 0)
+    {
+        ESP_LOGD(TAG_CS, "Notify: Read %zd bytes from storage for notification", bytes_read);
+
+        struct os_mbuf *om = ble_hs_mbuf_from_flat(read_buffer, bytes_read);
+        if (!om) {
+            ESP_LOGE(TAG_CS, "Notify: Failed to allocate mbuf for notification. Stopping.");
+            break; // Stop sending if mbuf allocation fails
+        }
+
+        int rc = ble_gatts_notify_custom(conn_handle, char_val_handle, om);
+        if (rc != 0) {
+            ESP_LOGE(TAG_CS, "Notify: Error sending notification (rc=%d). Stopping.", rc);
+            // ble_gatts_notify_custom frees 'om' on success or if it takes ownership even on some errors.
+            // If it returns an error where 'om' is not freed, we might need os_mbuf_free_chain(om);
+            // For now, assume NimBLE handles 'om' correctly in error cases like BLE_HS_ENOMEM.
+            break; // Stop if notification fails
+        }
+        ESP_LOGD(TAG_CS, "Notify: Sent %zd bytes successfully.", bytes_read);
+    }
+
+    if (ferror(fp)) { ESP_LOGE(TAG_CS, "Notify: File read error from %s.", filename); }
+    fclose(fp);
+    free(read_buffer);
+    storage_uninit();
+    ESP_LOGI(TAG_CS, "Notify: Finished sending capability data for conn %u.", conn_handle);
+}

firmware/components/remote_control/device_service.c

@@ -0,0 +1,29 @@
+#include "include/device_service.h"
+#include "esp_app_desc.h"
+#include <stdio.h>
+#include <string.h>
+
+int ds_model_number_read(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg)
+{
+    char model_number_str[65];
+    const esp_app_desc_t *app_desc = esp_app_get_description();
+
+    if (app_desc->project_name[0] != '\0' && app_desc->version[0] != '\0')
+    {
+        snprintf(model_number_str, sizeof(model_number_str), "%s v%s", app_desc->project_name, app_desc->version);
+    }
+    else
+    {
+        snprintf(model_number_str, sizeof(model_number_str), "undefined");
+    }
+
+    os_mbuf_append(ctxt->om, model_number_str, strlen(model_number_str));
+    return 0;
+}
+
+int ds_manufacturer_read(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg)
+{
+    char *manufacturer = "mars3142";
+    os_mbuf_append(ctxt->om, manufacturer, strlen(manufacturer));
+    return 0;
+}

firmware/components/remote_control/include/capability_service.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "host/ble_hs.h"
+#include <stdio.h>
+
+/// Service Characteristics Callback
+int capa_read(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg);
+void capa_notify_data(uint16_t conn_handle, uint16_t char_val_handle);
+
+/// Service Characteristics User Description
+int capa_char_1979_user_desc(uint16_t con_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg);

firmware/components/remote_control/include/device_service.h

@@ -0,0 +1,7 @@
+#pragma once
+
+#include "host/ble_hs.h"
+#include <stdio.h>
+
+int ds_model_number_read(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg);
+int ds_manufacturer_read(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg);

firmware/components/remote_control/include/led_service.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include "host/ble_hs.h"
+#include <stdio.h>
+
+/// LED Service Characteristic Callbacks
+int ls_write(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg);
+int ls_capabilities_read(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg);
+
+/// LED Service Characteristic User Description
+int ls_char_a000_user_desc(uint16_t con_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg);
+int ls_char_dead_user_desc(uint16_t con_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg);

firmware/components/remote_control/include/remote_control.h

@@ -0,0 +1,3 @@
+#pragma once
+
+void ble_init(void);

firmware/components/remote_control/led_service.c

@@ -0,0 +1,77 @@
+#include "include/led_service.h"
+
+#include "led_matrix.h"
+
+static const char *TAG = "led_service";
+
+/// Capabilities of Device
+int ls_capabilities_read(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg)
+{
+    char *data = "To be implemented later";
+    os_mbuf_append(ctxt->om, data, strlen(data));
+    return 0;
+}
+
+// Write data to ESP32 defined as server
+int ls_write(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg)
+{
+    const char *received_payload = (const char *)ctxt->om->om_data;
+    uint16_t payload_len = ctxt->om->om_len;
+
+    // Define command strings
+    const char CMD_LIGHT_ON[] = "LIGHT ON";
+    const char CMD_LIGHT_OFF[] = "LIGHT OFF";
+    const char CMD_FAN_ON[] = "FAN ON";
+    const char CMD_FAN_OFF[] = "FAN OFF";
+
+    if (payload_len == (sizeof(CMD_LIGHT_ON) - 1) && strncmp(received_payload, CMD_LIGHT_ON, payload_len) == 0)
+    {
+        ESP_LOGI(TAG, "LIGHT ON");
+        for (int i = 0; i < led_matrix_get_size(); i++)
+        {
+            led_matrix_set_pixel(i, 10, 10, 0);
+        }
+    }
+    else if (payload_len == (sizeof(CMD_LIGHT_OFF) - 1) && strncmp(received_payload, CMD_LIGHT_OFF, payload_len) == 0)
+    {
+        ESP_LOGI(TAG, "LIGHT OFF");
+        for (int i = 0; i < led_matrix_get_size(); i++)
+        {
+            led_matrix_set_pixel(i, 0, 0, 0);
+        }
+    }
+    else if (payload_len == (sizeof(CMD_FAN_ON) - 1) && strncmp(received_payload, CMD_FAN_ON, payload_len) == 0)
+    {
+        ESP_LOGI(TAG, "FAN ON");
+        // TODO: Implement action for FAN ON
+    }
+    else if (payload_len == (sizeof(CMD_FAN_OFF) - 1) && strncmp(received_payload, CMD_FAN_OFF, payload_len) == 0)
+    {
+        ESP_LOGI(TAG, "FAN OFF");
+        // TODO: Implement action for FAN OFF
+    }
+    else
+    {
+        char temp_buffer[payload_len + 1];
+        memcpy(temp_buffer, received_payload, payload_len);
+        temp_buffer[payload_len] = '\0';
+
+        ESP_LOGI(TAG, "Unknown command from client: %s", temp_buffer);
+    }
+
+    return 0;
+}
+
+int ls_char_a000_user_desc(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg)
+{
+    const char *desc = "Capabilities of Device";
+    os_mbuf_append(ctxt->om, desc, strlen(desc));
+    return 0;
+}
+
+int ls_char_dead_user_desc(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt, void *arg)
+{
+    const char *desc = "Readable Data from Server";
+    os_mbuf_append(ctxt->om, desc, strlen(desc));
+    return 0;
+}

firmware/components/remote_control/remote_control.c

@@ -0,0 +1,250 @@
+#include <stdio.h>
+#include <string.h>
+
+#include "capability_service.h"
+#include "esp_event.h"
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/event_groups.h"
+#include "freertos/task.h"
+#include "host/ble_hs.h"
+#include "host/ble_sm.h"
+#include "host/ble_uuid.h"
+#include "include/device_service.h"
+#include "include/led_service.h"
+#include "led_matrix.h"
+#include "nimble/nimble_port.h"
+#include "nimble/nimble_port_freertos.h"
+#include "sdkconfig.h"
+#include "services/gap/ble_svc_gap.h"
+#include "services/gatt/ble_svc_gatt.h"
+
+static const char *TAG = "remote_control";
+
+static const ble_uuid16_t device_service_uuid = BLE_UUID16_INIT(0x180A);
+static const ble_uuid128_t capability_service_uuid =
+    BLE_UUID128_INIT(0x91, 0xB6, 0xCA, 0x95, 0xB2, 0xC6, 0x7B, 0x90, 0x31, 0x45, 0x77, 0xE6, 0x67, 0x10, 0x68, 0xB9);
+static const ble_uuid16_t led_service_uuid = BLE_UUID16_INIT(0x1007);
+
+uint8_t ble_addr_type;
+
+// Handle for the capability characteristic value
+static uint16_t g_capa_char_val_handle;
+
+static void ble_app_advertise(void);
+
+static struct ble_gatt_dsc_def char_0xA000_descs[] = {{
+                                                          .uuid = BLE_UUID16_DECLARE(0x2901),
+                                                          .att_flags = BLE_ATT_F_READ,
+                                                          .access_cb = ls_char_a000_user_desc,
+                                                      },
+                                                      {0}};
+
+static struct ble_gatt_dsc_def char_0xDEAD_descs[] = {{
+                                                          .uuid = BLE_UUID16_DECLARE(0x2901),
+                                                          .att_flags = BLE_ATT_F_WRITE,
+                                                          .access_cb = ls_char_dead_user_desc,
+                                                      },
+                                                      {0}};
+
+static struct ble_gatt_dsc_def char_0x1979_desc[] = {{
+                                                         .uuid = BLE_UUID16_DECLARE(0x2901),
+                                                         .att_flags = BLE_ATT_F_READ,
+                                                         .access_cb = capa_char_1979_user_desc,
+                                                     },
+                                                     {0}};
+
+// Array of pointers to other service definitions
+static const struct ble_gatt_svc_def gatt_svcs[] = {
+    {
+        .type = BLE_GATT_SVC_TYPE_PRIMARY,
+        .uuid = &device_service_uuid.u,
+        .characteristics =
+            (struct ble_gatt_chr_def[]){
+                {.uuid = BLE_UUID16_DECLARE(0x2A24), .flags = BLE_GATT_CHR_F_READ, .access_cb = ds_model_number_read},
+                {.uuid = BLE_UUID16_DECLARE(0x2A29), .flags = BLE_GATT_CHR_F_READ, .access_cb = ds_manufacturer_read},
+                {0}},
+    },
+    {
+        .type = BLE_GATT_SVC_TYPE_PRIMARY,
+        .uuid = &capability_service_uuid.u,
+        .characteristics = (struct ble_gatt_chr_def[]){{
+                                                           .uuid = BLE_UUID16_DECLARE(0x1979),
+                                                           .flags = BLE_GATT_CHR_F_READ | BLE_GATT_CHR_F_NOTIFY,
+                                                           .access_cb = capa_read,
+                                                           .val_handle = &g_capa_char_val_handle,
+                                                           .descriptors = char_0x1979_desc,
+                                                       },
+                                                       {0}},
+    },
+    {
+        .type = BLE_GATT_SVC_TYPE_PRIMARY,
+        .uuid = &led_service_uuid.u,
+        .characteristics = (struct ble_gatt_chr_def[]){{
+                                                           .uuid = BLE_UUID16_DECLARE(0xA000),
+                                                           .flags = BLE_GATT_CHR_F_READ | BLE_GATT_CHR_F_NOTIFY,
+                                                           .access_cb = ls_capabilities_read,
+                                                           .descriptors = char_0xA000_descs,
+                                                       },
+                                                       {
+                                                           .uuid = BLE_UUID16_DECLARE(0xDEAD),
+                                                           .flags = BLE_GATT_CHR_F_WRITE,
+                                                           .access_cb = ls_write,
+                                                           .descriptors = char_0xDEAD_descs,
+                                                       },
+                                                       {0}},
+    },
+    {0}};
+
+// BLE event handling
+static int ble_gap_event(struct ble_gap_event *event, void *arg)
+{
+    switch (event->type)
+    {
+    case BLE_GAP_EVENT_CONNECT:
+        ESP_LOGI(TAG, "BLE GAP EVENT CONNECT %s", event->connect.status == 0 ? "OK!" : "FAILED!");
+        if (event->connect.status != 0)
+        {
+            // Re-advertise if connection failed
+            ble_app_advertise();
+        }
+        break;
+
+    case BLE_GAP_EVENT_DISCONNECT:
+        ESP_LOGI(TAG, "BLE GAP EVENT DISCONNECTED");
+        // Re-advertise after disconnection
+        ble_app_advertise();
+        break;
+
+    case BLE_GAP_EVENT_ADV_COMPLETE:
+        ESP_LOGI(TAG, "BLE GAP EVENT ADV COMPLETE");
+        // Re-advertise to continue accepting new clients
+        ble_app_advertise();
+        break;
+
+    case BLE_GAP_EVENT_SUBSCRIBE:
+        ESP_LOGI(TAG,
+                 "BLE GAP EVENT SUBSCRIBE conn_handle=%d attr_handle=%d reason=%d "
+                 "prev_notify=%d cur_notify=%d prev_indicate=%d cur_indicate=%d",
+                 event->subscribe.conn_handle, event->subscribe.attr_handle, event->subscribe.reason,
+                 event->subscribe.prev_notify, event->subscribe.cur_notify, event->subscribe.prev_indicate,
+                 event->subscribe.cur_indicate);
+
+        // Check if subscription is for the capability characteristic's CCCD.
+        // The CCCD handle is typically the characteristic value handle + 1.
+        // g_capa_char_val_handle stores the handle of the characteristic value itself.
+        if (event->subscribe.attr_handle == g_capa_char_val_handle + 1)
+        {
+            if (event->subscribe.cur_notify)
+            {
+                ESP_LOGI(TAG, "Client subscribed to capability notifications. Sending data...");
+                // Call the function to send capability data via notifications
+                capa_notify_data(event->subscribe.conn_handle, g_capa_char_val_handle);
+            }
+            else
+            {
+                ESP_LOGI(TAG, "Client unsubscribed from capability notifications.");
+            }
+        }
+        break;
+
+    default:
+        break;
+    }
+    return 0;
+}
+
+// Define the BLE connection
+static void ble_app_advertise(void)
+{
+    int ret;
+
+    // GAP - advertising definition
+    struct ble_hs_adv_fields fields;
+    memset(&fields, 0, sizeof(fields));
+    fields.flags = BLE_HS_ADV_F_DISC_GEN | BLE_HS_ADV_F_BREDR_UNSUP;
+    fields.uuids128 = (ble_uuid128_t[]){capability_service_uuid};
+    fields.num_uuids128 = 1;
+    fields.uuids128_is_complete = 1;
+
+    ret = ble_gap_adv_set_fields(&fields);
+    if (ret != 0)
+    {
+        ESP_LOGE(TAG, "Failed to set advertising data (err: %d)", ret);
+        return;
+    }
+
+    // GAP - device connectivity definition
+    struct ble_gap_adv_params adv_params;
+    memset(&adv_params, 0, sizeof(adv_params));
+    adv_params.conn_mode = BLE_GAP_CONN_MODE_UND; // connectable or non-connectable
+    adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN; // discoverable or non-discoverable
+    ret = ble_gap_adv_start(ble_addr_type, NULL, BLE_HS_FOREVER, &adv_params, ble_gap_event, NULL);
+    if (ret != 0)
+    {
+        ESP_LOGE(TAG, "Advertising failed to start (err %d)", ret);
+        return;
+    }
+
+    // --- Configure Scan Response Data (SCAN_RSP) ---
+    struct ble_hs_adv_fields scan_rsp_fields;
+    memset(&scan_rsp_fields, 0, sizeof(scan_rsp_fields));
+
+    // Get the device name
+    const char *device_name;
+    device_name = ble_svc_gap_device_name();
+    scan_rsp_fields.name = (uint8_t *)device_name;
+    scan_rsp_fields.name_len = strlen(device_name);
+    scan_rsp_fields.name_is_complete = 1;
+
+    // Optionally, add TX power level to scan response
+    scan_rsp_fields.tx_pwr_lvl = BLE_HS_ADV_TX_PWR_LVL_AUTO;
+    scan_rsp_fields.tx_pwr_lvl_is_present = 1;
+
+    ret = ble_gap_adv_rsp_set_fields(&scan_rsp_fields);
+    if (ret != 0)
+    {
+        ESP_LOGE(TAG, "Error setting scan response data; rc=%d", ret);
+        return;
+    }
+}
+
+// The application
+static void ble_app_on_sync(void)
+{
+    uint8_t ble_addr[6] = {0};
+    int ret = ble_hs_id_copy_addr(BLE_ADDR_PUBLIC, ble_addr, NULL);
+    if (ret != 0)
+    {
+        ESP_LOGE(TAG, "Failed to get BLE MAC address (err: %d)", ret);
+        return;
+    }
+
+    char formatted_name[32];
+    snprintf(formatted_name, sizeof(formatted_name), "Miniature Town %02X%02X", ble_addr[4], ble_addr[5]);
+    ble_svc_gap_device_name_set(formatted_name);
+
+    // Start Advertising
+    ble_hs_id_infer_auto(0, &ble_addr_type); // Determines the best address type automatically
+    ble_app_advertise();
+}
+
+// The infinite task
+static void host_task(void *param)
+{
+    nimble_port_run(); // This function will return only when nimble_port_stop() is executed
+}
+
+void ble_init(void)
+{
+    nimble_port_init();
+    ble_svc_gap_init();
+    ble_svc_gatt_init();
+    ble_gatts_count_cfg(gatt_svcs);
+    ble_gatts_add_svcs(gatt_svcs);
+
+    // Callback für Synchronisation
+    ble_hs_cfg.sync_cb = ble_app_on_sync;
+
+    nimble_port_freertos_init(host_task); // Start BLE-Host-Task
+}