This is a setup for 2-way bluetooth communication between an arduino and an android phone. There is a sample arduino script (in testSystem) for the arduino end, and an android studio project for the ...
Following on from the recent Raspberry Pi Pico Advanced Kit, check out Makeblock's "mBot Ultimate", which is described as a 10-in-1 robot building Kit based on the Makeblock platform. It's a DIY robot ...