• smarthome.
• DataFlow.
• UdpRequestData

const payload = new Uint8Array([0x00, 0xFF, 0x00, 0xFF]);

const command = new DataFlow.UdpRequestData();
command.requestId = request.requestId;
command.deviceId = 'device-id';
command.port = 5555;
command.data = Buffer.from(payload).toString('hex');
command.expectedResponsePackets = 1;

const command = new DataFlow.UdpRequestData();
command.expectedResponsePackets = 1;
...

localHomeApp.getDeviceManager()
 .send(command)
 .then((result: DataFlow.CommandSuccess) => {
   const udpResult = result as DataFlow.UdpResponseData;
   const packets = udpResult.udpResponse.responsePackets;
 })
 .catch((err: IntentFlow.HandlerError) => {
   // Handle command error
 });