Quote from Greg Boyles on 19/10/2019, 9:48 pm

Folks you can now download Mixly here: https://drive.google.com/uc?export=download&confirm=ajkp&id=1CtP1bvZB-o4M5SfvIOOwFz-488gWsFTJ

This is a visual block programing system for Arduino microcontrollers.

It allows you to include standard Arduino libraries that are part of your Arduino IDE software which you should also install on your computer:

https://www.arduino.cc/en/Main/software