Jdy40 Arduino Example Best 90%

void loop() while (jdy40.available()) char c = jdy40.read(); if (c == '\n') // End of packet processPacket(buffer); buffer = ""; else buffer += c;

void loop() // Read from Serial Monitor (PC) if (Serial.available()) String data = Serial.readString(); jdy40.print(data); // Send wirelessly to receiver jdy40 arduino example best

The biggest flaw with raw serial transmission is packet collision . If you send "HELLO" and "WORLD" fast, they might merge into "HELLOWORLD". The best JDY-40 example includes start/end markers and checksums. Use Case: Sending Sensor Data (DHT11) This example transmits temperature and humidity with error checking. void loop() while (jdy40

void loop() float temp = dht.readTemperature(); float hum = dht.readHumidity(); buffer = ""

#include <SoftwareSerial.h> SoftwareSerial jdy40(2, 3); String buffer = "";