如果输入为 HIGH,我遇到了发送 1 条 SMS 的问题,如果它是 LOW==> 没有要发送的 SMS,如果 LOW 到 HIGH==> 发送 1 条 SMS。此代码不起作用,我打开 GPRS 时只是发送了短信,之后什么也没发生。
mclopez 帮助了我,谢谢,但不起作用:(,这是我用 delay()s 编写的新代码,但同样的问题。
感谢您提前提供帮助。
#include <SoftwareSerial.h>
#include "TimerOne.h"
const int DI = 2;
const int DT = 3;
const int DGP1 = 4;
const int DGP2 = 5;
const long interval = 100000; // in microseconds
int value1 = 0;
int value2 = 0;
int value3 = 0;
int value4 = 0;
int value1_old = 0;
int value2_old = 0;
int value3_old = 0;
int value4_old = 0;
boolean changed1 = false;
boolean changed2 = false;
boolean changed3 = false;
boolean changed4 = false;
SoftwareSerial SIM900 (7, 8);
void SIM900power(){
digitalWrite(9, HIGH);
delay(1000);
digitalWrite(9, LOW);
delay(5000);
}
void initia(){
SIM900.print("AT+CMGF=1\r");
delay(100);
SIM900.println("AT + CMGS = \"xxxxxxxxxx\"");
delay(100);
}
void Send_SMS(){
SIM900.println((char)26);
delay(100);
SIM900.println();
delay(5000);
}
void isr_timer(){
if (changed2) {
initia();
SIM900.println("Station 85: Defaut electrique");
delay(100);
Send_SMS();
value2_old = value2;
changed2 = false;
}
if (changed3) {
initia();
SIM900.println("Station 85: DefautGP1");
delay(100);
Send_SMS();
value3_old = value3;
changed3 = false;
}
if (changed4) {
initia();
SIM900.println("Station 85:DD>1000");
delay(100);
Send_SMS();
value4_old = value4;
changed4 = false;
}
}
void setup() {
pinMode(DI, INPUT);
pinMode(DT, INPUT);
pinMode(DGP1, INPUT);
pinMode(DGP2, INPUT);
SIM900.begin(19200);
Timer1.initialize(interval);
Timer1.attachInterrupt(isr_timer);
}
void loop() {
value1 = digitalRead (DI);
value2 = digitalRead (DT);
value3 = digitalRead (DGP1);
value4 = digitalRead (DGP2);
if (value1 != value1_old && value1 == HIGH) changed1 = true;
if (value2 != value2_old && value2 == HIGH) changed2 = true;
if (value3 != value3_old && value3 == HIGH) changed3 = true;
if (value4 != value4_old && value4 == HIGH) changed4 = true;
value1_old = value1;
value2_old = value2;
value3_old = value3;
value4_old = value4;
}