feat: Implement MTU change callback and manufacturer data setting, fix UUID handling, and update PlatformIO build configuration.

Author: Chamath-Adithya

examples/BasicProvisioning/BasicProvisioning.ino

@@ -31,7 +31,7 @@ using namespace WiBLE;
 // GLOBAL OBJECTS
 // ============================================================================
 
-WiBLE provisioner;
+WiBLE::WiBLE provisioner;
 
 // ============================================================================
 // CONFIGURATION

platformio.ini

@@ -1,7 +1,16 @@
 [env:esp32]
 platform = espressif32
 board = esp32dev
+board_build.partitions = huge_app.csv
 framework = arduino
 monitor_speed = 115200
 lib_deps = 
     ; No external dependencies needed for now as per analysis
+build_flags = 
+    -I src
+    -I src/utils
+test_build_src = true
+
+[platformio]
+src_dir = examples/BasicProvisioning
+lib_dir = .

src/BLEManager.cpp

@@ -168,6 +168,13 @@ void BLEManager::ServerCallbacks::onDisconnect(BLEServer* server) {
     }
 }
 
+void BLEManager::ServerCallbacks::onMtuChanged(BLEServer* server, esp_ble_gatts_cb_param_t* param) {
+    LogManager::info("BLE MTU Changed: " + String(param->mtu.mtu));
+    if (manager->mtuChangeCallback) {
+        manager->mtuChangeCallback(param->mtu.mtu);
+    }
+}
+
 void BLEManager::CharacteristicCallbacks::onWrite(BLECharacteristic* characteristic) {
     std::string value = characteristic->getValue();
     std::vector<uint8_t> data(value.begin(), value.end());
@@ -231,7 +238,7 @@ void BLEManager::startBeacon(String uuid, uint16_t major, uint16_t minor, int8_t
     // Let's use a dummy UUID for now if parsing is complex, or try basic parsing.
     // Actually, BLEUUID class can parse it.
     BLEUUID bleUUID(uuid.c_str());
-    esp_bt_uuid_t rawUUID = bleUUID.getNative();
+    esp_bt_uuid_t rawUUID = *bleUUID.getNative();
 
     // Check if it's 128-bit
     if (rawUUID.len == 16) {
@@ -260,6 +267,23 @@ void BLEManager::startBeacon(String uuid, uint16_t major, uint16_t minor, int8_t
     LogManager::info("iBeacon started");
 }
 
+void BLEManager::setManufacturerData(uint16_t companyId, uint8_t* data, size_t length) {
+    if (!advertising) return;
+    
+    std::string mfgData;
+    mfgData += (char)(companyId & 0xFF);
+    mfgData += (char)((companyId >> 8) & 0xFF);
+    
+    for(size_t i=0; i<length; i++) {
+        mfgData += (char)data[i];
+    }
+    
+    BLEAdvertisementData oAdvertisementData = BLEAdvertisementData();
+    oAdvertisementData.setFlags(0x04);
+    oAdvertisementData.setManufacturerData(mfgData);
+    advertising->setAdvertisementData(oAdvertisementData);
+}
+
 void BLEManager::startBroadcasting(uint16_t manufacturerId, const uint8_t* data, size_t length) {
     if (!initialized || !advertising) return;
 

src/BLEManager.h

@@ -537,7 +537,7 @@ class BLEManager::ServerCallbacks : public BLEServerCallbacks {
 
     void onConnect(BLEServer* server) override;
     void onDisconnect(BLEServer* server) override;
-    void onMtuChanged(BLEServer* server, uint16_t mtu) override;
+    void onMtuChanged(BLEServer* server, esp_ble_gatts_cb_param_t* param) override;
 
 private:
     BLEManager* manager;