ขอบคุณครับ เดี๋ยวจะลองดูแล้วจะแจ้งให้ทราบนะครับ
ตอนนี้เขียนได้ละครับ แต่ผมเพิ่มส่วนของการส่งข้อมูลให้ LED ดับด้วย
ตัวส่ง
#include <SPI.h>
#include <LoRa.h>
int pin = 3;
String text = "ให้ LED ติด";
String text1 = "ให้ LED ดับ";
void setup() {
Serial.begin(9600);
while (!Serial);
Serial.println("LoRa-sender");
pinMode(pin,INPUT);
if (!LoRa.begin(433E6)) {
Serial.println("Starting LoRa failed!");
while(1);
}
}
void loop(){
int A = digitalRead(pin);
if (A==HIGH){
LoRa.beginPacket();
LoRa.print(text);
LoRa.endPacket();
Serial.print("Send '");
Serial.print(text);
Serial.println("'");
}
if (A==LOW){
LoRa.beginPacket();
LoRa.print(text1);
LoRa.endPacket();
Serial.print("Send '");
Serial.print(text1);
Serial.println("'");
delay(2000);
}
}
ตัวรับ
#include <SPI.h>
#include <LoRa.h>
int led = 3;
String text;
void setup(){
Serial.begin(9600);
while (!Serial);
Serial.println("LoRa-received");
pinMode(led,OUTPUT);
if (!LoRa.begin(433E6)) {
Serial.println("Starting LoRa failed!");
while(1);
}
digitalWrite(led,0);
}
void loop(){
if (LoRa.parsePacket()) {
String text = LoRa.readString();
Serial.print("Receiver '");
Serial.print(text);
Serial.print("' RSSI is ");
Serial.println(LoRa.packetRssi());
if(text == "ให้ LED ดับ"){
digitalWrite(led,LOW);
}
}
if (LoRa.parsePacket()) {
String text = LoRa.readString();
Serial.print("Receiver '");
Serial.print(text);
Serial.print("' RSSI is ");
Serial.println(LoRa.packetRssi());
if(text == "ให้ LED ติด"){
digitalWrite(led,HIGH);
}
}
}
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