Android Gatt server - Peripheral

peripheral.kt

// Starts GattServer to serve remote Central requests
private val gattServer: BluetoothGattServer by lazyNone {
    bluetoothManager.openGattServer(this.applicationContext, GattServerCallback())
}

private class GattServerCallback : BluetoothGattServerCallback() {
  
  override fun onConnectionStateChange(device: BluetoothDevice, status: Int, newState: Int) { ... }
  
  override fun onCharacteristicReadRequest(device: BluetoothDevice, requestId: Int, offset: Int, characteristic: BluetoothGattCharacteristic) {
     // Respond with TraceCharacteristic value from given offset
  }
  
}