) scattered in the garden, each monitoring soil moisture. By sending simple JSON messages with a "destination ID," only the intended remote node replies, making it feel like a sophisticated, custom-built network. Best Practice Setup Example
For two modules to talk to each other, they must be on the same channel and have the same network address. Connect to GND on the JDY-40. Connect to Arduino and use the SoftwareSerial code above. Open the Serial Monitor (9600 Baud, set to "Both NL & CR"). Type AT and press enter. It should reply OK . Best AT Command Sequence for Communication: AT+CLSS1 (Sets Channel to 1) AT+DAAI1234 (Sets Device Addr to 1234) AT+RFID1 (Sets RF ID to 1) AT+BAUD4 (Sets Baud rate to 9600) jdy40 arduino example best
The JDY-40 is a 2.4GHz wireless transceiver designed for transparent serial transmission. Its key features include: ) scattered in the garden, each monitoring soil moisture
Open the Arduino Serial Monitor at with Both NL & CR enabled. Essential AT Commands Send these commands to configure your modules: Connect to GND on the JDY-40
For two JDY-40 modules to communicate, they must share the same and Network ID .