Jdy40 Arduino Example Best

To use the JDY-40 with an Arduino, you must ensure you are using or a level shifter, as the module is not 5V tolerant.

The 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

void setup() Serial.begin(9600); // For Serial Monitor output Serial1.begin(9600); // For communication with JDY-40

AT+DVID (Default is 2453 ). Both modules must match. jdy40 arduino example best

Keep the onboard PCB trace antenna clear of wires, metal chassis, and high-power components to ensure maximum range.

// Use SoftwareSerial if hardware serial is occupied, or use Serial directly. SoftwareSerial jdy(10, 11); // RX, TX

The JDY-40 operates on the 2.4GHz band with a range of up to 120 metres in open space. It communicates via standard asynchronous serial (UART), making it fully compatible with any Arduino board. Pin Configuration To use the JDY-40 with an Arduino, you

#include <SoftwareSerial.h>

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If you tell me the of your project (e.g., controlling a robot, sending sensor data, wireless remote) and what Arduino model you are using, I can provide a more tailored code example. Keep the onboard PCB trace antenna clear of

| Command | Description | Example Response | |---------|-------------|------------------| | AT | Test communication | OK | | AT+VER | Get firmware version | +JDY-40-V2.2 | | AT+BAUD | Get current baud rate | +BAUD=9600 | | AT+BAUDx | Set baud rate (x = 1–8) | AT+BAUD4 → 9600 baud | | AT+RFID | Get current RF channel and ID | +RFID=CH001,ID001 | | AT+RFCHxxx | Set channel (xxx = 001–128) | AT+RFCH005 → channel 5 | | AT+RFIDxxx | Set node ID (xxx = 001–999) | AT+RFID123 → ID 123 | | AT+POWE | Get current TX power | +POWE=3 (max) |

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