Jdy40 Arduino Example Best 〈TRENDING – 2027〉

To interface the JDY-40 with an Arduino (like a Nano or Uno), use the following wiring scheme. Note that the module is ; applying 5V to the data pins without a level shifter can damage it. JDY-40 Pin Arduino Pin Description VCC Power supply (2.2V - 3.6V) GND Common Ground RXD TX (e.g., D3*) Data receive pin (3.3V logic) TXD RX (e.g., D2*) Data transmit pin SET D4 / GND / 3.3V LOW for AT Mode; HIGH for Communication Mode CS Chip Select; LOW to keep the module active

Open two separate Serial Monitor instances in the Arduino IDE, each corresponding to its own Arduino board. Set both Serial Monitors to 9600 baud. Type in one monitor and it will appear on the other. 4. Configuring JDY-40 via AT Commands jdy40 arduino example best

: Since the JDY-40 natively broadcasts to all nodes on the same frequency and RFID, use JSON formatting to include a "destination" field in your messages Selective Response To interface the JDY-40 with an Arduino (like

Video #257: Serial Wireless Comms for Arduino (et al) - GitHub Set both Serial Monitors to 9600 baud