I have always thought small robots were great and creating one with the cost effective Microbit would be ideal. I wanted to create a robot that didnt use a ready made IO boards like I have used in the past to drive motors or get sensor inputs, I wanted something smaller. This small Microbit robot is one I will base a series of tutorials on. Starting first with how I made it using “The Really Useful Box Companies boxes” for a chassis, and using very small motors and motor drivers. I will use this base model to explore things like bluetooth control shown in the video, using the accelerometer and magnometer to determine direction, and adding things like Neopixels and IR distance sensors. There are plenty of boards you can buy to just plug your microbit into that will run motors and servos, but for this we will use the main components you will need to replace these add on boards.The same principals will apply to using any microcontroller when driving motors.
Video of the bot in action
I used the small boxes from the “Really Useful Box” company for the body of the robot, I used 3 of the lids to make it, so you would need some of those or something similar. I like the idea of using items you have already to build containers for electronics and motors.”