Jdy40 Arduino Example Best !!top!! Jun 2026

The JDY-40 is a . While its serial pins (RX/TX) are often tolerant to 5V Arduino logic, you must power it with 3.3V. JDY-40 Pin Arduino Pin Description VCC Power Supply (2.2V - 3.6V) GND RXD Pin 11 (SoftSerial TX) Serial input to module TXD Pin 10 (SoftSerial RX) Serial output from module SET Pin 9 (or GND for AT) Low (GND): AT Command mode; High: Data mode CS Low: Awake; High: Sleep mode 2. Best Code Example: Transparent Serial

void setup() Serial.begin(9600); jdy40.begin(9600); Serial.println("JDY-40 Receiver Listening..."); jdy40 arduino example best

| Command | Function | | :--- | :--- | | AT | Test communication | | AT+VERSION | Get firmware version | | AT+DEFAULT | Reset to factory | | AT+BAUD4 | Set baud to 9600 (4=9600, 5=19200, etc.) | | AT+RFCH0 | Set channel (0-19) – use same on both | | AT+ADDR0001 | Set address (0001-FFFF) – use same on both | The JDY-40 is a

Serial.println(F("--- JDY-40 Smart Bridge Started ---")); Serial.println(F("Type 'AT' to enter config mode (works only at 9600 baud)")); Serial.println(F("Type 'SETBAUD' to automatically set module to 115200")); Serial.println(F("-----------------------------------")); Best Code Example: Transparent Serial void setup() Serial

Как работать с беспроводным модулем jdy-40 и ардуино?