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Topic: Please help Etherneth Shield not working ??? (Read 198 times) previous topic - next topic


Oct 09, 2017, 11:56 am Last Edit: Oct 09, 2017, 01:34 pm by Rabii
Hi All,

I am working on a project kind of Product counter system, iam using arduino uno and ethernet shield and using  IR Sharp sensor GP2Y0A02YK0F 20-150 cm when i try code using only arduino it works however when i try to add etherenet shield code there is no communication and can't figure out what is the problem, can you please help

this is my code for arduino :

  Web Server UMS Application Software and hardware communication

#include <SPI.h>
#include <Ethernet.h>

// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
IPAddress ip(192, 168, 0, 160);

int sensorCounter=0; // holds the number of products counted
int iSenseMin=420; // sensor minimum value for count function reset (calibrate in a testing enviroment then set as default values)
int iSenseMax=450; // sensor maximum value to indicate a valid count (calibrate in a testing enviroment then set as default values)
bool bCountFlag=0; // a flag indicating the specific count current state

//char server[] = "";

// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);

void setup() {
  // Open serial communications and wait for port to open:
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only

  // start the Ethernet connection and the server:
  Ethernet.begin(mac, ip);
  Serial.print("server is at ");

void loop() {
  // listen for incoming clients
  EthernetClient client = server.available();
  if (client) {
    //Serial.println("new client");
    // an http request ends with a blank line
    //boolean currentLineIsBlank = true;
    while (client.connected()) {
      if (client.available()) {

        if (SensorRead()>iSenseMax)
            if(!bCountFlag) // if the count state flag is not set a new count will be carried out
              sensorCounter++;    // add count
              //Counting(); // display new count value
              Serial.print("Number of finished products: ");
              Serial.println(sensorCounter); // debugging

              client.print("GET /capteur/bdd-connet.php?"); // This
              client.print("chaineid="); // This
              client.print(sensorCounter); // And this is what we want to do when the sensor count new produc - send the count to the be written in our Database
              client.println(" HTTP/1.1 200 OK"); // Part of the GET request
              client.println("Host:"); // IP Address
              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

              bCountFlag=1; // sets the count flag to true indicating that no further counts can be made until flag is set to false
              while(bCountFlag) // a hold to wait for the sensor to go below the minimum value
                if(SensorRead()<iSenseMin) bCountFlag=0; // break the loop
          delay(10); // function settle
        //char c = client.read();
        // Serial.write(c);

      // give the web browser time to receive the data
    // close the connection:
    Serial.println("client disconnected");

  int sensorValue = analogRead(A0); // sensor voltage output connected to Arduino analog pin A0
  return sensorValue;

i was hoping if anyone can help please.


Code: [Select]

    while (client.connected()) {
      if (client.available()) {

        if (SensorRead()>iSenseMax)

You're only reading the sensor when there's a client connecting to your Arduino.

Is that really what you want?

If not you should explain what exactly this is supposed to do.
Quality of answers is related to the quality of questions. Good questions will get good answers. Useless answers are a sign of a poor question.

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