This is a custom UI for Badger 2040 that I built for the Census engineering offsite in 2022. I aimed to recreate the iconic 1984 Macintosh UI in a compact design.

Known bugs

I had to cut some corners, so that I could finish the assembly of a small batch before the event. Here is a list of known bugs:

If you open the same application twice (e.g. open QR app, open Badge app, and open QR app again), the device will restart and show a welcome screen. I shouldn't have tried to build a multi app experience in the first place. IMO, it is too much to do to implement this right in Python. I think if it was Lisp environment, it would have been easier.
I forgot to adjust the battery voltage to calculate the battery level. The device may show that a battery is empty or it is not plugged in.

Upload steps

Upload pimonori-badger2040-micropython bootloader
Upload Python scripts

Edit text

Badge: badges/badge.txt
QR: qrcodes/qrcode.txt
Clippy: fortune/cookie.txt

Edit images

Clone https://github.com/pimoroni/pimoroni-pico
python3 examples/badger2040/image_converter/convert.py --binary image.png image.bin
cp image.bin badges/badge.bin

User Guide

A button opens Badge app
B button opens QR app
C button opens Special app. Up/Down buttons randomly load a new quote
A + C buttons open Welcome screen