Jdy40 Arduino Example Best — __top__

The JDY-40 is a compact 2.4GHz wireless transceiver that functions like a wireless serial cable. It is widely used for Arduino projects due to its simplicity, low power consumption (5uA in sleep), and a range of up to 120 meters in open areas. 1. Essential Wiring

Quick recommendation

Transmitter Code (Arduino A):

Going Further

The JDY-40 supports AT commands. To change the baud rate or channel, connect the SET pin to 3.3V before powering up the module. Then you can send commands like AT+BAUD4 (for 115200) or AT+RFCH1 (for channel 1).

void loop() // Read from Serial Monitor (PC) if (Serial.available()) String data = Serial.readString(); jdy40.print(data); // Send wirelessly to receiver jdy40 arduino example best

Happy wireless making!

is a highly versatile, low-cost 2.4GHz wireless serial port module. Unlike Bluetooth, it uses a proprietary 2.4G protocol, making it faster for simple point-to-point communication between Arduinos with a range of up to 120 meters. Key Technical Specs Operating Voltage : 2.2V - 3.6V (Use a 3.3V regulator; it is 5V tolerant on VCC). : Standard Serial (UART). The JDY-40 is a compact 2

AT+RFID: Set a common "Wireless ID" for your specific network to avoid interference from other JDY-40 users. AT+DVID: Assign a unique "Device ID" to individual modules. AT+POWE: Adjust transmit power (0–9) to save battery. Configuration with AT command - Arduino Forum

Pro Tip: Always pair addresses and channels

If you have multiple sets of JDY-40s nearby, change the channel and address: void loop() // Read from Serial Monitor (PC) if (Serial