@Struzck That's good because the Bittle that I have been given to test only has the USB to UART converter. Python is much easier to teach to kids than Ardunio. If I want to go wireless is it better to get a Wifi dongle over the Bluetooth as the Bluetooth has a lower data rate???

Just so I understand how this works. Am I write in saying this runs your code to control Bittle on your PC in python then sends the commands to Bittle's Nyboard that has the a WiFi or bluetooth dongle attached??

Micopython firmware is written in C so once you have working C functions for BiBoard then it is just a case of adding the C fuctions to the open source ESP32 Micopython firmware then creating a python wrapper(cut and paste the standard wrapper) so that the C functions can be called by python. I look forward to the bittle arriving and having a play with it.

Many thanks for your reply. Your graphical interface partner has made a great resource for teaching kids about robotics and how to program bittle :) The fan made python scripts is looks like a very nicely developed python API and I look forward to testing it. I do notice that your currently developing an ESP32 main board and look forward to its development. Many robots that are using ESP32 are making use of micopython because it allows both C and python functionality. Low level functions can be written in C and compiled into the micropython firmware then high level use of these functions can be scripted in python.