// exemple de condition avec l'entrée analogique

int sensorPin = A0;   
int ledPin = 13;      
int sensorValue = 0;  

void setup() {
  // declare the ledPin as an OUTPUT:
  pinMode(ledPin, OUTPUT);  
  Serial.begin(57600);
}

void loop() {
  // read the value from the sensor:
  sensorValue = analogRead(sensorPin);   
  Serial.println(sensorValue);
  
 if(sensorValue>350){
   digitalWrite(ledPin, HIGH);  
    delay(1000);       
 } 
  // turn the ledPin off
  else{
    digitalWrite(ledPin, LOW); 
    delay(1000);  
 }
 
}