Jdy40 Arduino Example Best Jun 2026

Summary

While Arduinos typically use 5V logic, the JDY-40 prefers 3.3V. Using a voltage divider (resistors) on the Arduino's TX line can prevent long-term damage to the module. 2. Best Code Example: Two-Way Communication jdy40 arduino example best

110 m: connection lost

—JDY-40, Arduino, wireless communication, UART, embedded systems. Summary While Arduinos typically use 5V logic, the

(Serial.available()) jdySerial.write(Serial.read()); jdy40 arduino example best

Open Tools → Serial Plotter on the receiver. You’ll see a live graph of temperature and humidity – wirelessly!