gizDuino UHF Standard Data Transceiver Tutorial

A Multi-channel UHF Data Transceiver designed as a UART wireless cable operating baudrate 9600bps, half duplex, no hardware handshake mode. As long as your data packet does not exceed 96 bytes. Using Serial print and Serial Event program  to use it. Arduino/gizDuino Compatible.

Technical Manual

Specifications:

Operating Voltage: 5V

Frequency Range: 431.1MHz – 437.3 MHz

Channel Separation: 400Khz

Transmit to Receive latency: 20-30ms

RSSI:  150-635, with 635 corresponding to -38dbm antenna RF input signal strength

Wiring Connections: (Transmitter and Receiver)

UHF  STD —> gizDuino 328 UNO

+5V —> +5V

GND —> GND

TXD —> D0 (RX)

RXD —> D1 (TX)

• Note: The Channel selection must be the same channel both transmitter and receiver to communicate.
• Tips: To avoid some error in uploading…Do not upload the code when the UHF module TXD pin to RX gizduino is connected, use the slide switch to disable/disconnect the connection.

Codes:

Transmitter:

	String inputString = ""; // a string to hold incoming data
	String COMMAND = "";
	void setup() {
	Serial.begin(9600);
	inputString.reserve(200);
	}
	void loop()
	{
	//Trasmitting data
	Serial.println("Transmitter");
	delay(1000);
	Serial.println("1");
	delay(1000);
	Serial.println("2");
	delay(1000);
	Serial.println("3");
	delay(1000);
	}
	void serialEvent() {
	while (Serial.available() > 0) {
	// get the new byte:
	char inChar = (char)Serial.read();
	// add it to the inputString:
	inputString += inChar;
	inputString.trim();
	if (inChar == '\n') {
	COMMAND = inputString.substring(0);
	COMMAND.trim();
	Serial.println(COMMAND);
	inputString= "";
	COMMAND = "";
	}
	}
	}

view rawUHF_Transmitter.ino hosted with  by GitHub

Receiver:

	String inputString = ""; // a string to hold incoming data
	String COMMAND = "";
	void setup() {
	Serial.begin(9600);
	inputString.reserve(200);
	}
	void loop() {
	//Transmitting data
	Serial.println("Receiver");
	delay(1000);
	Serial.println("1");
	delay(1000);
	Serial.println("2");
	delay(1000);
	Serial.println("3");
	delay(1000);
	}
	void serialEvent() {
	while (Serial.available() > 0) {
	// get the new byte:
	char inChar = (char)Serial.read();
	// add it to the inputString:
	inputString += inChar;
	inputString.trim();
	if (inChar == '\n') {
	COMMAND = inputString.substring(0);
	COMMAND.trim();
	Serial.println(COMMAND);
	inputString= "";
	COMMAND = "";
	}
	}
	}

view rawUHF_Receiver.ino hosted with  by GitHub