Jdy40 Arduino Example Best [verified] Jun 2026

Once configured, communication becomes simple. Anything sent into the serial port of Module A instantly outputs from the serial port of Module B.

void loop() if (bluetooth.available() > 0) char data = bluetooth.read(); Serial.print("Received: "); Serial.println(data); jdy40 arduino example best

#define DHTPIN 2 #define DHTTYPE DHT11 DHT dht(DHTPIN, DHTTYPE); Once configured, communication becomes simple

In the crowded world of 2.4GHz wireless modules, the nRF24L01 often steals the spotlight. However, it comes with a notorious catch: complex configuration, pin sensitivity, and frequent “fried” modules due to 5V logic. Enter the — a hidden gem for Arduino enthusiasts who need simple, reliable, ultra-low-power point-to-point or broadcast communication. However, it comes with a notorious catch: complex

The following example uses the SoftwareSerial library. This is the "best" general example because it leaves the Arduino's Hardware Serial (USB) free for debugging and monitoring data on the Serial Monitor.

void loop() float temp = dht.readTemperature(); float hum = dht.readHumidity(); Serial.print(temp); Serial.print(","); Serial.println(hum); delay(5000);

This code reads data from the Serial Monitor and sends it wirelessly to any other JDY-40 on the same channel (must be in Transparent Mode).