While there are a couple of open-source brushless drivers already available, [neuromancer2701] created his own brushless motor controller on an Arduino shield.

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!.

Section 3: L293D Motor Controller IC. The purpose of using this IC is to control the direction for the motor and also the speed of rotation of the motor. L293D Datasheet Section 4: LCD Display to ...