On the electronics and interfacing side of things, [John] utilises the Arduino pro micro for its copious analog inputs and USB functionality.

Control three LEDs using three push buttons with an Arduino Uno. This project demonstrates how to control three LEDs using three push buttons with an Arduino Uno. Each button controls one LED, ...

This project demonstrates how to control two servo motors using an Arduino UNO. Each servo is connected to a different PWM pin and powered by the Arduino’s 5V and GND pins.