Ethernet Shield

Projects Programming
1

Greetings, it's me again, just to make it clear again , english is not my first language , I apologise if there is any mistake.
Let's get to the point.
I did this program and it seems to be working fine. however. once I tryed to add the ethernet shield code. it just do not show the web page.
I tryed to make it as clean as possible, and not gonne lie is based on examples that I found on internet.
Hope that you could tell me if there is something wrong with the code.
(The code is a bit long so I attached it )
I also found this code to test my ethernet shield , if it prints de ip the shield is working, and apparently it is working , but I'm not sure if it is true.

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

byte mac[] = {  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192,168,0,30);

void setup() {
  Serial.begin(9600);

  // disable SD card if one in the slot
  pinMode(4,OUTPUT);
  digitalWrite(4,HIGH);

  Serial.println("Starting w5100");
  Ethernet.begin(mac,ip);

  Serial.println(Ethernet.localIP());
}

void loop() {
}

I'm not a programmer, but I really need to get this done (or maybe I'm now , but a really novice one lol )

Thanks for reading.

Pruebas.ino (9.48 KB)

2

it will run and print the IP address even without the shield.
see the examples of the current version of the Ethernet library

3

it is the most common habit of newbees to just add a complex code by copy & paste maybe adapt variable-names to their project and then - it does not work.

You should find a demo-code that is written for your ethernet-shield. Testing if the ethernet-shield works with this demo-code.

Then do a simple and small change like adding a single variable to the demo-code testing if the changed demo-code works

If Yes add the demo-code to your main program. Testing again if the http-functionality is working.

if it works add a small change - test
if it works add a small change - test
if it works add a small change - test
....
best regards Stefan

4

if it prints de ip the shield is working, and apparently it is working , but I'm not sure if it is true.

Well, if you get an IP address, why not enter it in your browser and check if your server is working? So - if you encounter a problem with your code - clearly state what problem you have.

As Juraj already stated, start with the Arduino IDE Example
Ethernet | WebServer
This example MUST Work when you are using an Arduino UNO.

If you can confirm, we can come up with more proposals.

5 
    Serial.begin(9600);//serial port speed

  //People counter
    pinMode(0, INPUT); //Infrared  In
    pinMode(1, INPUT); //Infrared  Out

On the Arduino UNO, Pin 0 and Pin 1 are the Serial pins! You can't use them for both. Note: You can use A0 through A5 for digital I/O if you are running low on digital pins.

    pinMode(4, OUTPUT); //Ultrasonic trigger

WARNING: If you have an SD card in the slot on the Ethernet Shield, setting Pin 4 to LOW will put that SD card on the SPI bus used by the Ethernet chip. Should be OK if you don't have an SD card in the slot.

6 
    if((distanciaT>5)&&(ciclo==0)){
    if((distanciaT < 5 )&&(36.5<temperatura)&&(temperatura<40))

WARNING: pulseIn() will return 0 if there is no pulse. This happens if there is nothing close enough to produce a readable echo. You may want to consider 0 to be greater than 5.

7

sorry for the late reply I got a bit busy :confused: .
It is working now , aparrently there was an error with the ethernet that I was using.
Juraj , I used a simple program that I found and it is working thanks for that , I didn't know arduino had many examples.
StefanL38 , I'll start to do that , seems better than just writte it all at once.
noiasca , that's what I did , but it wasn't working (a problem with the ethernet cable) , but now it is working.
jhonwasser :
I didn't know that , guess I'm going to have to do some little changes , thanks for pointing that.
I'm not using a SD card , still not sure If I will need one.
oh , so then I'll add that greater than 0 condition

Thank you guys for helping me :slight_smile: