Jdy40 Arduino Example Best ((better)) Jun 2026

Expected Response: +CLSS:A0 (Sets module to transparent transmission mode) Type AT+RFID1234 →right arrow

Expected Response: +OK (Sets the communication channel to 05. Match this on both modules) Type AT+BAUD4 →right arrow jdy40 arduino example best

The AT+CLSS command changes the fundamental behavior of the GPIO pins from serial communication to various remote-control I/O modes. 0) String data = Serial.readString()

void loop() if (Serial.available() > 0) String data = Serial.readString(); Serial.print(data); // Send data to the other module String buffer = ""

Change the setPin configuration to on both Arduinos, or physically disconnect the wire from Pin 4 to drop the module into regular data transmission mode. The Code (Use on Both Transmitters and Receivers)

SoftwareSerial jdy40(2, 3); String buffer = "";