Jdy40 Arduino Example Best ⚡

After setting AT+RFNETID , the modules automatically pair. No need for AT+LINK or address targeting. This is transparent broadcasting — anything one sends, all receive.

In this tutorial, I’ll show you how to wire two Arduinos using JDY-40 modules and send data back and forth. jdy40 arduino example best

A full-duplex communication bridge that allows the user to change the JDY-40 baud rate via Arduino code (removing the need for USB-to-TTL adapters for setup) and provides a "Heartbeat" signal quality indicator . After setting AT+RFNETID , the modules automatically pair

(Serial.available()) jdy40.write(Serial.read()); After setting AT+RFNETID

// Define RX (JDY-40 TX) and TX (JDY-40 RX) pins SoftwareSerial jdy40(2, 3); // RX = pin 2, TX = pin 3