La mesure du niveau de fioul dans la cuve se fait pas un capteur à ultrasons.

	const int trigPin = 1;
	const int echoPin = 0;
	void setup() {
	  Serial.begin(9600);
	}
	void loop()
	{
	  long duration, inches, cm;
	  pinMode(trigPin, OUTPUT);
	  digitalWrite(trigPin, LOW);
	  delayMicroseconds(2);
	  digitalWrite(trigPin, HIGH);
	  delayMicroseconds(10);
	  digitalWrite(trigPin, LOW);
	  pinMode(echoPin, INPUT);
	  duration = pulseIn(echoPin, HIGH);
	  // convert time into cm
	  cm = microsecondsToCentimeters(duration);
	  Serial.print(cm);
	  Serial.print("cm");
	  Serial.println();
	  delay(1000); // delais d'une seconde
	}
	long microsecondsToCentimeters(long microseconds)
	{
	  return microseconds / 29 / 2;
	}

/* Utilisation du capteur Ultrason JSN-SR04T */
#include 
#include 

byte mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
 
// Enter the IP address for Arduino, as mentioned we will use 192.168.1.33
// Be careful to use , insetead of . when you enter the address here
IPAddress ip(192,168,1,33);
char server[] = "karl.bouchez.free.fr"; // If you have a web page, enter its address (ie. "www.yourwebpage.com")

// Initialize the Ethernet server library
EthernetClient client;

// définition des broches utilisées 
int trig = 12; 
int echo = 11; 
long lecture_echo; 
long cm;

void setup() 
{ 
  pinMode(trig, OUTPUT); 
  digitalWrite(trig, LOW); 
  pinMode(echo, INPUT); 
  Serial.begin(9600); 
    // start the Ethernet connection
  Ethernet.begin(mac, ip);
}

void loop() 
{ 
   digitalWrite(trig, HIGH); 
  delayMicroseconds(10); 
  digitalWrite(trig, LOW); 
  lecture_echo = pulseIn(echo, HIGH); 
  cm = lecture_echo / 58; 
  Serial.print("Distancem : "); 
  Serial.println(cm); 
    // Connect to the server (your computer or web page)  
  if (client.connect(server, 80)) {
    client.print("GET /write_data_fuel.php?"); // This
    client.print("value="); // This
    client.print(cm);
    //client.print(photocellReading); // We are making a GET request just like we would from our browser but now with live data from the sensor
    client.println(" HTTP/1.1"); // Part of the GET request
    client.println("Host: karlytau.raidghost.com"); // IMPORTANT: If you are using XAMPP you will have to find out the IP address of your page.
    client.println("Connection: close"); // Part of the GET request telling the server that we are over transmitting the message
    client.println(); // Empty line
    client.println(); // Empty line
    client.stop();    // Closing connection to server

  }

  else {
    // If Arduino can't connect to the server (your computer or web page)
    Serial.println("--> connection failed\n");
  }
 
  delay(5000); //1000 pour 1 seconde
  
}

#include 
#include 

byte mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
 
// Enter the IP address for Arduino, as mentioned we will use 192.168.1.33
// Be careful to use , insetead of . when you enter the address here
IPAddress ip(192,168,1,33);

// defines pins numbers
const int trigPin = 9;
const int echoPin = 10;
// defines variables
long duration;
int distance;
int i = 0;
char server[] = "karl.bouchez.free.fr"; // IMPORTANT: If you are using XAMPP you will have to find out the IP address of your page.

// Initialize the Ethernet server library
EthernetClient client;

void setup() {

 pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
pinMode(echoPin, INPUT); // Sets the echoPin as an Input

  // Serial.begin starts the serial connection between computer and Arduino
  Serial.begin(9600);
 
  // start the Ethernet connection
  Ethernet.begin(mac, ip);
    
}

void loop() {
 
  //photocellReading = analogRead(photocellPin); // Fill the sensorReading with the information from sensor
 
  // Connect to the server (your computer or web page)  
  if (client.connect(server, 80)) {
    client.print("GET /write_data.php?"); // This
    client.print("value="); // This
    client.print(i);
    //client.print(photocellReading); // And this is what we did in the testing section above. We are making a GET request just like we would from our browser but now with live data from the sensor
    client.println(" HTTP/1.1"); // Part of the GET request
    client.println("Host: karl.bouchez.free.fr"); // IMPORTANT: If you are using XAMPP you will have to find out the IP address of your page.
    client.println("Connection: close"); // Part of the GET request telling the server that we are over transmitting the message
    client.println(); // Empty line
    client.println(); // Empty line
    client.stop();    // Closing connection to server
 i = i + 5;
  }

  else {
    // If Arduino can't connect to the server (your computer or web page)
    Serial.println("--> connection failed\n");
  }
   delay(1000);
}