Hi,
You can actually hook up a whole matrix keypad onto a single analog pin. There must be something on this in the avrfreaks forum. check it out, if not, i will post a link here in sometime.
Cheers,
Pracas
Hi,
You can actually hook up a whole matrix keypad onto a single analog pin. There must be something on this in the avrfreaks forum. check it out, if not, i will post a link here in sometime.
Cheers,
Pracas