Bit: Original firmware with MicroPython

ge0rdi · December 14, 2024, 3:12pm

Hello there.

I found it rather frustrating that one can have either original firmware or MicroPython installed on Bit device.

So I have created custom firmware (based on original one) that can easily switch to MicroPython and back (without lengthy installing and erasing game data, etc).

Here is the guide so anybody can create such firmware (and tinker with it):

gist.github.com

https://gist.github.com/ge0rdi/7e9aa11967b6f70f7338ca6be137adee

BitMicroPython.md

# Bit firmware with MicroPython

This guide shows how to make MicroPython available along with original [CircuitMess Bit](https://circuitmess.com/pages/stem-adventure-en) console firmware.

### How it works
We will create separate OTA partition with custom compiled MicroPython.  
Running `Snake` (wink-wink) game on Bit will select this OTA partition for next boot and restart device.  
At that moment MicroPython will be running and can program in Python via [CircuitBlocks](https://code.circuitmess.com).  
To make sure we'll get back to original Bit firmware (aftre reboot), MicroPython will select original factory partition for next boot.

This file has been truncated. show original

MicroPython is started by running Snake game (I was lazy to add another “game” so I have piggy-backed on existing one). It will appear to do nothing, but in this state it can be connected on CircuitBlocks page.
To return to original firmware, just reboot the device (or disconnect USB cable).