My AdaBoxDrawBot is a small robot that uses colored pens to draw on the surface it’s moving around on. It’s built from Adafruit’s AdaBox 002 and some additional parts. I used a custom FeatherWing with a MCP23008 I2C 8 bit port expander and a ULN2803A to drive a pair of 28BYJ-48 stepper motors.
It runs a version of my ClassBotLib (see https://github.com/russhughes/ClassBo... for more information) modified for the FeatherWing. I am currently working on porting the ClassBotLib from Arduino to micropython. I’ll be documenting the build and will post it on GitHub.
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