I bought and started to play with MicroPython board v1.0 - not overjoyed. The barriers to entry to the level of "blinked the LEDs and to switch on and off button" was not just insignificant, but null, it worked immediately. Starter documentation is complete and in Russian.
The test pieces of code in the terminal, linking the Board via PuTTY and a USB cord.
Program wrote by editing the file main.py text editor (the file system is seen by Windose as simple removable media).