Arduino ethernet webclient php script and mysql

Forum 2005-2010 (read only) Software Syntax & Programs
28

zoomkat. Thanks for your help but I'm getting nowhere. I've tried putting in just the code to turn the LED ON/OFF but it doesn't work and the serial monitor chucks out tons of stuff. I've been on this since 7am and it's now 10:45pm so here's my code:

//zoomkat 11-13-10
//simple ethernet client test code
//for use with IDE 0021 and W5100 ethernet shield
//modify the arduino lan ip address as needed
//open serial monitor to see what the arduino receives
//push the shield reset button to run client again

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

byte mac[] = { 0x90, 0xA2, 0xDA, 0x00, 0x11, 0xAC };
byte ip[] = { 192, 168, 1, 19 };
byte server[] = { 192,168,1,20 };

Client client(server, 80);
String readString = String(30); //string for fetching data from address

void setup()
{
  Ethernet.begin(mac, ip);
  Serial.begin(9600);
  //pin mode
  pinMode(7,OUTPUT); digitalWrite(7,LOW);  // I use this pin as GND for the LED.
  pinMode(8,OUTPUT); // Sample output, unable to use built-in LED at pin 13 because Ethernet Shield uses pins 10,11,12,13.

  Serial.println("starting simple arduino client test");
  Serial.println();

  delay(1000);

  Serial.println("connecting...");

  if (client.connect()) {
    Serial.println("connected");
    client.println("GET /~shb/arduino.txt HTTP/1.0");
    client.println();
  } else {
    Serial.println("connection failed");
  }
}

void loop()
{
  if (client.available()) {
//###########################################################
          char c = client.read();
          //read char by char HTTP request
          if (readString.length() < 30)  { 
          //store characters to string 
          readString.concat(c);
          Serial.println(readString);
          }  
          //output chars to serial port
          Serial.print(c);
            //if HTTP request has ended
            if (c == '\n') {
            //Turn on LED
            Serial.println(readString.substring(6,9));//for test to allow readString to be viewed
              if(readString.substring(6,9)=="7=1") {//read the last 3 information characters from URL
              // Serial.println(readString);
              //set digital 7 HIGH
              Serial.println("HIGH");
             digitalWrite(7, HIGH);    // set the LED on
              readString="";//clear readString
              }
                if(readString.substring(6,9)=="7=0") {
                //set digital 7 LOW
                Serial.println("LOW");
                digitalWrite(7, LOW);    // set the LED OFF
                readString="";//clear readString           
                }
              
     
              } 
//###########################################################


  if (!client.connected()) {
    Serial.println();
    Serial.println("disconnecting.");
    Serial.println("==================================");
    Serial.println("");
    client.stop();
   // for(;;);
  }
}
}

I'll have another go tomorrow perhaps! :frowning: