Web Page for Data Entry

Hi I am new to Arduino and looking to create my first project. As part of the project I would like to have the user enter some data on a webpage and have this stored on the SD Card.

I cannot find any examples that show a basic setup to have a web page on the YUN that the user can access input a text value and have this stored in a text file on the SD card.

I can then retrieve the data to the sketch at startup.

Any help would be greatly appreciated.


Php Page for Data Entry