Upload files to "BLE_server_values"

BLE_server_values/BLE_server_values.ino

@@ -0,0 +1,85 @@
+#include <NimBLEDevice.h>
+
+#define SERVICE_UUID        "12345678-1234-5678-1234-56789abcdef0"
+#define CHARACTERISTIC_UUID "87654321-4321-6789-4321-fedcba987654"
+
+NimBLEServer* pServer = nullptr;
+NimBLEService* pService = nullptr;
+NimBLECharacteristic* pCharacteristic = nullptr;
+
+bool deviceConnected = false;
+
+class MyServerCallbacks : public NimBLEServerCallbacks {
+  void onConnect(NimBLEServer* pServer) {
+    deviceConnected = true;
+    Serial.println("Client Connected!");
+  }
+
+  void onDisconnect(NimBLEServer* pServer) {
+    deviceConnected = false;
+    Serial.println("Client Disconnected!");
+  }
+};
+
+class MyCharacteristicCallbacks : public NimBLECharacteristicCallbacks {
+  void onRead(NimBLECharacteristic* pCharacteristic) {
+    Serial.println("Read request received!");
+  }
+
+  void onWrite(NimBLECharacteristic* pCharacteristic) {
+    Serial.println("Write request received!");
+  }
+
+  void onNotify(NimBLECharacteristic* pCharacteristic) {
+    Serial.println("Notify triggered!");
+  }
+};
+
+void setup() {
+  Serial.begin(115200);
+  delay(1000);
+
+  Serial.println("Initializing BLE Server...");
+
+  // Initialize BLE
+  NimBLEDevice::init("BLE_Server");
+  
+  pServer = NimBLEDevice::createServer();
+  pServer->setCallbacks(new MyServerCallbacks());
+
+  // Create a service
+  pService = pServer->createService(SERVICE_UUID);
+
+  // Create a characteristic with notify
+  pCharacteristic = pService->createCharacteristic(CHARACTERISTIC_UUID, 
+                            NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::WRITE | NIMBLE_PROPERTY::NOTIFY);
+  
+  pCharacteristic->setCallbacks(new MyCharacteristicCallbacks());
+
+  // Start the service
+  pService->start();
+
+  // Advertise the service
+  NimBLEAdvertising* pAdvertising = NimBLEDevice::getAdvertising();
+  pAdvertising->addServiceUUID(SERVICE_UUID);
+  pAdvertising->start();
+  Serial.println("Advertising started...");
+}
+
+void loop() {
+  // Send notifications every second if a client is connected
+  uint16_t values[4] = { 123, 456, 789, 1011};
+  values[0] = 999;
+  values[1] = analogRead(A0);
+  values[2] = analogRead(A1);
+  values[3] = analogRead(A2);
+
+  // Check if the device is connected and send notifications
+  //if (deviceConnected) {
+    pCharacteristic->setValue((uint8_t*)values, sizeof(values)); // Send data
+    pCharacteristic->notify(); // Notify client
+    Serial.println("Sent data to client");
+  //}
+
+  //delay(1000);  // Update every second
+}