docs: private void sendSyncControlCommand(DeviceUpdate target, byte command) throws IOException {
          ensureRunning();
          byte[] payload = new byte[SYNC_CONTROL_PAYLOAD.length];
          System.arraycopy(SYNC_CONTROL_PAYLOAD, 0, payload, 0, SYNC_CONTROL_PAYLOAD.length);
          payload[2] = getDeviceNumber();
          payload[8] = getDeviceNumber();
          payload[12] = command;
          assembleAndSendPacket(Util.PacketType.SYNC_CONTROL, payload, target.getAddress(), BeatFinder.BEAT_PORT);
      }