An early prototype, with the controller app
The final product
A small, toy-sized car that uses a BBC Micro:Bit, and is controlled by a smartphone app using Bluetooth.
We designed a PCB that uses a H-bridge made up of transistors. This allowed us to control the direction of current flow, which determined which way the motors would spin.
The base of the car is a laser-cut sheet of acrylic plastic. The car is held up by two front wheels, and a ball caster at the rear to keep balance.
This project was part of our university course, and received a grade of 90%.