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1  Using Arduino / Programming Questions / Re: Web page does not work in my SD card on: May 29, 2013, 07:24:47 am
You should read about memory problems in this tutorial:

The size of the String is limited in the code:
if (req_index < REQ_SIZE) {
    HTTP_req += c;  // save the HTTP request 1 char at a time

It is limited to the size of 60 bytes, but this can be changed where it is defined:
#define REQ_SIZE 60

Reducing the size of the string may solve any memory problem.
2  Using Arduino / Networking, Protocols, and Devices / Re: Excellent Arduino Ethernet Shield Web Server Tutorial on: May 29, 2013, 06:56:44 am
The tutorial is mostly independent from what hardware is used, ethernet or wifi. Yes, I am responsible for posting and replying a lot of these wifi shield problem threads smiley

The shield is not as stable as ethernet shield so if you want to try one, buy one that says R3 on it and never upgrade firmware. Then use arduino ide 1.0.2

Thanks for the info, liudr. I think I will wait a while before getting the WiFi shield.

I was asking about what hardware everyone was using out of curiosity, but good to know that the tutorial should work on most hardware. I am using a Arduino Uno before R2 revision and Ethernet shield v5. I think it is v5, the version number is not printed on the board and I am not sure how to find it. It looks like the one on, so I think it must be version 5:
3  Using Arduino / Networking, Protocols, and Devices / Re: Excellent Arduino Ethernet Shield Web Server Tutorial on: May 25, 2013, 05:19:54 am
Just wondered what hardware you guys are using? Which Arduino board / Ethernet shield (or the combo one called Arduino Ethernet) and has anyone used the WiFi shield with the tutorial?

I saw a post on this forum about all sorts of problems with the WiFi shield. Anyone have any luck with it?

4  Using Arduino / Networking, Protocols, and Devices / Excellent Arduino Ethernet Shield Web Server Tutorial on: May 19, 2013, 05:49:36 am
Hello all Arduino users.

I have found an excellent resource for making a web server using the Arduino Ethernet shield:

This is actually a set of tutorials and covers all the technologies necessary for making a web server.
It covers:
  • HTTP
  • HTML
  • JavaScript
  • Ajax
  • CSS
  • Web server hosted on SD card
  • Web server hosted without SD card

Someone commented on Twitter that this is possibly the best Arduino web server tutorial ever. After following it I can agree.  smiley-cool

So if you want to use the Arduino Ethernet shield as a web server, but are clueless where to start, then take a look at the tutorial - highly recommended.
5  Using Arduino / Installation & Troubleshooting / Re: Arduino software doesn't work on windows 7 on: February 27, 2013, 03:48:57 pm
If anyone has the same problem, there is an installation instruction for installing Arduino software on Windows 7 here
6  Using Arduino / Sensors / Re: Does anyone know how to interface this FishFinder on: December 10, 2012, 04:40:13 pm
Post the make and model of the fish finder - can't see from the picture. Even better, post a link to the manual or datasheet for it that has info on what ports are available on the fish finder. Or a datasheet for the transducer if you want to connect it directly to the Arduino.
7  Using Arduino / Installation & Troubleshooting / Re: Leonardo does not show Serial port after application loaded - reset? on: December 10, 2012, 04:22:34 pm
You should be able to load the bootloader through the ICSP header using an external programmer.

I have used these tutorials for the UNO, but you will need to get the correct bootloader for the Leonardo:

Using the Arduino software -

Using Atmel Studio -
8  Using Arduino / Microcontrollers / Re: Leonardo as ISP for ATtiny85 on: December 10, 2012, 03:46:39 pm
Maybe this will help you diagnose the problem:
They say there: Hold the shift key down while you press the upload button and post the resulting diagnostic output.
See what the diagnostics say...

Then this thread talks about making the capacitor bigger:;topic=104624.0
9  Using Arduino / Microcontrollers / Re: Leonardo as ISP for ATtiny85 on: December 09, 2012, 11:21:33 am
Do you have Atmel Studio installed on your system?

I know there is a problem when using an external programmer to update the Arduino bootloader with systems that have Atmel studio installed - see
10  Using Arduino / Installation & Troubleshooting / Re: unknown device on: December 09, 2012, 11:13:17 am
I found this that has all the steps for installing drivers for the Arduino Uno (with pictures) -

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