The build relies on an Arduino Uno as the brains. It’s equipped with an L293D motor driver shield to run two DC gear motors which drive the walking assemblies. Power is courtesy of a 3-cell ...

The Arduino has been used for many purposes, and “shields” are available to make many common tasks easier. However, [Nick] wanted a stackable motor driver shield, so he build one himself!.

The entire program ... Arduino UNO board, and includes several key components: four gear motors with wheels for moving the car, four LEDs for signaling the active status of each motor, a motor ...