Here is a simple example to teach about machine learning, programming using BBC Micro:Bit and controlling a servo motor. The robotic arm can be controlled by showing different images to a webcam connected to a PC. The machine learning algorithm recognizes the command and sends it to the microbit over a virtual serial port. The Micro:Bit can be programmed to move the servo motor based on the commands received.

This project is heavily based on https://teachablemachine.withgoogle.com

Steps:

1. Create the Machine learning model

2. Create script to read camera, recognize and notify microcontroller over serial port

3. Create servo motor control program for microcrontroller to perform desired action based on serial port message