send method
Send the message bytes to all connected devices
Implementation
@override
void send({String? deviceId, int? timestamp}) {
data = Uint8List.fromList(headerData);
data.insert(0, 0xF0); // Start byte
data.addAll(_bytesForValue(value));
data.add(0xF7); // End byte
super.send(deviceId: deviceId, timestamp: timestamp);
}