Thorin Klosowski Cell phones are easy enough to come by these days, but if you've ever wanted to just build your own, Instructables user xiaobo__ shows how to do it with an Arduino.

Connecting Arduino to Processing Introduction So, you’ve blinked some LEDs with Arduino, and maybe you’ve even drawn some pretty pictures with Processing - what’s next? At this point you may ...

[Scott-28] recently sent in a particularly well-documented project that turned an antique rotary phone into a digital kitchen timer using an internal Arduino.

From there, it was relatively easy to connect the dial to one of the pins on an Arduino Uno to determine which numbers the user had entered.