New: The L293D and GM4 motor!

The instructions for assembling the Pi v3 and the previous acrylic Pi SAFE are quite similar. The only difference between the models is the location of the LED light pipes, so these Pi3 instructions apply generally to all Pi SAFE versions. 1. Your Parts! 8 x 4-40 nuts 8 x 4-40 x 3/8" bolts 2 […]

Here's a little makeover of an inexpensive aftermarket heated car seat heating pad that stopped working. Designed to activate and warm up when sat upon, the electronics face a fair amount of abuse: since the seat is a soft frame, the wires inside constantly move and flex with the body. They are also subject to […]

David Cook wrote a book. That book is a technically a Cook book, but we won't call it that. We'll call it Intermediate Robot Building (no, we don't have it yet, we're still waiting for our order!), and it heavily features the Roundabout Robot. If you're familiar with Mr. Cook's first book Robot Building for […]

Unlike Sparkfun, who actually manage to find fake Atmel ICs, we just get strange batches. The Atmel ATMega328 is the power behind the Arduino/Freeduino/*duino, and we have to set up a programming system to burn the venerable Arduino Bootloader into these chips. We normally use an AVR STK500 in HVSP (high voltage serial programming) mode, […]