I really want to make a Raspberry Pi laptop but just can't find the right size trackpad so in this project we will be salvaging an old one.

This 'Arduino Fast Power-MOSFET Driver Cookbook' demonstrates three inexpensive options to drive large Power MOSFET's fast.

Accukey lives!

Most of USBasps are not able to program at 3.3V. Some say they can switch between 5V and 3.3V, but not signal pins, e.g. MOSI.

A novel input device implemented with a binary tree.