Requête utilisant Substring
Bonjour à tous,
J'ai un problème au niveau de l'affichage dans la console pour une requête utilisant un substring.
J'utilise Tinkercad pour simuler l’environnement Arduino et tout fonctionne parfaitement dans celui-ci.
Par contre lorsque le sketch est joué dans l'Arduino cela ne fonctionne pas.
L'idée est de structurer la réception d'un SMS et effectuer un traitement adapté en fonction du contenu de celui-ci.
Par exemple la réception de "W_on 10" permet d'arroser pendant 10 minutes (sinon par défaut 7 minutes)
la réception du SMS se traite comme ceci:
Code:
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void receive_message()
{
if (SIM900.available() > 0)
{
incomingData = SIM900.readString(); // Get the data from the serial port.
Serial.println(incomingData);
Serial.println(stringToLong(incomingData.substring(4)));
//Serial.println(incomingData.substring(9,8));
//Serial.println(incomingData.substring(11,10));
delay(10);
}
} |
Ce qui marche :
Code:
Serial.println(incomingData);
affiche bien W_on 10,
Ce qui ne marche pas
Code:
Serial.println(stringToLong(incomingData.substring(4)));
devrait m'afficher "10" mais en réalité il n'y a rien.
Un simple
Code:
Serial.println(incomingData.substring(4));
ne m'affiche rien non plus.
Je ne vois pas ce qui cause le problème.
En vous remerciant pour l'aide. ;)
Code complet:
Code:
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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);
} |
