Add 2DOF camera PTZ on Jetbot 2GB AI Robot Car

The original Jetbotmini car camera angle can only be adjusted manually, which limits the using ofr users. The expansion board provides two servo ports, which can be effectively used. Make the camera PTZ that can be programmed.


This is a companion discussion topic for the original entry at https://community.robotshop.com/tutorials/show/creating-a-chameleon-based-on-bbc-microbit