how to read the existing sketch in Arduino UNO board

hi friends, I had uploaded a sketch in my Arduino UNO board through IDE, one month ago. Now I forgot what the sketch was. Please tell me how to read the existing sketch through IDE. thanks.

You can't, at least you can't get your source code back. You can get a HEX file of the program that will allow you to reprogram another chip with exactly the same code, but your source program is lost.

Lesson learned, be more organised in future :)


thanks, Graynoma...