baileytownsend.dev / rusty-badger
A personal rust firmware for the Badger 2040 W
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README.md

Badger 2040 W written in rust#

A rust controlled Badge for a conferences or anywhere else you want to be extra

Picture of the Badger 2040 running this softeare

Features#

  • Display some text to the left like name and job title
  • Display a small bmp image, can alternate images by pressing the c button. This example has Ferris with a knife and a QR code that links to this repo
  • Connects to a Adafruit Sensirion SHTC3 via STEMMA QT / Qwiic to get real time temperature and humidity
  • If you set a wifi network in .env the badge will set the pico's RTC and display the time one the display.
  • Counts unique wifi bssid's it comes across and keeps those counts unique across reboots by writing to flash.

Timings#

The project is a mosh posh of things to get it ready for an event I am going to this weekend, so it is not always the best code or well thought out. Especially timings, I did not want to always refresh everything as fast as possible for battery and Eink constraints.

  • roughly every 5 mins it checks for new wifi networks
  • roughly every 30 seconds it takes a new temp/humidity reading
  • roughly every min it updates the time display, altho the RTC should keep pretty accurate timing
  • roughly every 30 seconds it updates the top bar that holds wifi count as well as sensor data

This project would not be possible without..#

  • trvswgnr for their amazing ferris with a knife image. All i did was badly convert it to grayscale and scaled it down.
  • embassy framework and their great examples. Exactly zero chance I would have any of this written without this directory.
  • the uc8151-rs crate. Would not be able to write to the e ink display without this great crate.
  • And every other single crate found in Cargo.toml. None of it would be possible with out those packages and maintainers.