I made a few Microbit Robots for the local library coding class.This one was printed from scratch.
we started with just rf remote control but I plan to add line following sensors.
These two used commercially available chassis.
They all use a homemade dual motor driver I had posted on Instructables years ago.
I originally designed it for CNC use but it works better in a bot. I used old Toshiba 8080 H bridge drivers.
The first controllers used the accelerometer for steering.
Later I turned this old yard sale find N64 controller into a microbit host.
The board is a perfect fit
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