Exemple #1
0
void loop() {
  // listen for BLE peripherals to connect:
  BLECentral central = blePeripheral.central();

  // if a central is connected to peripheral:
  if (central) {
    Serial.print("Connected to central: ");
    // print the central's MAC address:
    Serial.println(central.address());
    // turn on the LED to indicate the connection:
    digitalWrite(13, HIGH);

    // check the heart rate measurement every 200ms
    // as long as the central is still connected:
    while (central.connected()) {
      long currentMillis = millis();
      // if 200ms have passed, check the heart rate measurement:
      if (currentMillis - previousMillis >= 200) {
        previousMillis = currentMillis;
        updateHeartRate();
      }
    }
    // when the central disconnects, turn off the LED:
    digitalWrite(13, LOW);
    Serial.print("Disconnected from central: ");
    Serial.println(central.address());
  }
}
void bleNotificationUnsubscribeHandler(BLECentral& central, BLECharacteristic& characteristic) {
  // value characteristic unsubscribe event handler
  DEBUG_PRINT("Unsubscribe event, central: ");
  DEBUG_PRINTLN(central.address());
}
void blePeripheralDisconnectHandler(BLECentral& central) {
  // central disconnected event handler
  DEBUG_PRINT("Disconnected event, central: ");
  DEBUG_PRINTLN(central.address());
}