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#include <SoftwareSerial.h> // Library for using serial communication
SoftwareSerial SIM900(3, 4); // Pins 3, 4 are used as used as software serial pins
//#define SIM900 Serial
String incomingData; // for storing incoming serial data
String message = ""; // A String for storing the message
int relay_pin = 2 ; // Initialized a pin for relay module
int relay_pin2 = 5; // Initialized a pin for relay module
String rtl; // to start from pump 1 or pump 2
String noMessage; // if sending confirmation SMS
String noMessage2; // if sending confirmation SMS
unsigned long previousMillis = 0;
long duration; // for storing pump working duration
void setup()
{
delay(10000); //Wait for SIM800 initialisation
Serial.begin(115200); // baudrate for serial monitor
SIM900.begin(19200); // baudrate for GSM shield
pinMode(relay_pin, OUTPUT); // Setting relay pin as output pin
digitalWrite(relay_pin, HIGH); // Making relay pin initailly low
pinMode(relay_pin2, OUTPUT); // Setting relay pin as output pin
digitalWrite(relay_pin2, HIGH); // Making relay pin initailly low
// set SMS mode to text mode
SIM900.println("AT+CMGF=1\r");
delay(100);
// set gsm module to tp show the output on serial out
SIM900.println("AT+CNMI=2,2,0,0,0\r");
delay(100);
}
void loop()
{
//Function for receiving sms
receive_message();
rtl = incomingData.substring(9,8); //Check if "R" in SMS
// if received command is to turn on relay
if(incomingData.indexOf("W_on")>-1)
{
//if reverse command received
if(rtl == "R"){
relay_pin = 5;
relay_pin2 = 2;
}
digitalWrite(relay_pin, LOW); //relay ON
//Duration setup according SMS
if(stringToLong(incomingData.substring(5))!= 0){
duration = stringToLong(incomingData.substring(5));
}
else {
duration = 7;
}
message = "Arrosage ON " + String(duration) + " minutes" ;
// Send a sms back to confirm that the relay is turned on
noMessage = incomingData.substring(11,10); //find "N" in SMS to send message or not
noMessage2 = incomingData.substring(9,8);
if(noMessage != "N" && noMessage2 != "N" ){
// send_message(message);
}
previousMillis = millis();//reset counter
incomingData = "";//empty message reception
}
// if received command is to turn off relay
if(incomingData.indexOf("W_off")>-1)
{
digitalWrite(relay_pin, HIGH);
digitalWrite(relay_pin2, HIGH);
message = "Arrosage OFF";
// Send a sms back to confirm that the relay is turned off
send_message(message);
incomingData = "";
}
if ((digitalRead(relay_pin) == LOW) && (millis() - previousMillis >= (duration * 60000))){
digitalWrite(relay_pin, HIGH);
delay(500);
digitalWrite(relay_pin2, LOW);
previousMillis = millis();
}
if ((digitalRead(relay_pin2) == LOW) && (millis() - previousMillis >= (duration * 60000))){
digitalWrite(relay_pin2, HIGH);
message = "Arrosage OFF";
// Send a sms back to confirm that the relay is turned off
if(noMessage != "N" && noMessage2 != "N" ){
send_message(message);
}
}
}
long stringToLong(String s)
{
char arr[12];
s.toCharArray(arr, sizeof(arr));
return atol(arr);
}
void receive_message()
{
if (SIM900.available() > 0)
{
incomingData = SIM900.readString(); // Get the data from the serial port.
Serial.println(incomingData);
Serial.println(incomingData.substring(5));
//Serial.println(stringToLong(incomingData.substring(4)));
//Serial.println(incomingData.substring(9,8));
//Serial.println(incomingData.substring(11,10));
delay(10);
}
}
void send_message(String message)
{
SIM900.println("AT+CMGF=1"); //Set the GSM Module in Text Mode
delay(100);
SIM900.println("AT+CMGS=\"+123456\"");
delay(100);
SIM900.println(message); // The SMS text you want to send
delay(100);
SIM900.println((char)26); // ASCII code of CTRL+Z
delay(100);
SIM900.println();
delay(1000);
} |
Requête utilisant Substring
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Envoyé par legrandse
, de ce côté là. J'espère sauver une partie de ta toison avec ma petite explication
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