The GPIOs are insanely fun. So much cool stuff you can do with them.
Only down side is they are digital only, so 3volts only and it only recognizes "on" or "off". If you want analogue feedback you need to use some kind of AtoD conversion (they have chips that do this nicely, but it'll use more GPIO pins).
[–] the-tinkerer 0 points 1 point 1 point (+1|-0) ago
The GPIOs are actually what interested me the most! I really wanted to do some home automation, but I'm renting.....