fleaz/arduino-co2-monitor
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fleaz c66d0a7733
 fix typo
2026-10-27 23:43:30 +01:00
src Add a ssd1306 display to output the measurement 2026-10-27 23:42:34 +01:00
.envrc First working version 2026-05-09 22:07:56 +02:00
.gitignore First working version 2026-05-09 22:07:56 +02:00
platformio.ini Add a ssd1306 display to output the measurement 2026-10-27 23:42:34 +01:00
README.md fix typo 2026-10-27 23:43:30 +01:00
shell.nix First working version 2026-05-09 22:07:56 +02:00

README.md

Arduino CO2 Monitor

Super simple battery powered and Arduino based CO2 Monitor which you can e.g. take with you in a meeting room.

Most of the code for the scd41 was taken from the official example: github.comSensirion/arduino-i2c-scd4x

Parts

  • Arduino Nano
  • Sensirion SCD40
  • SSD1306 128x64 display
  • short strip of WS2812B LEDs
  • 2x 18650 Li-Ion cells
  • TC4056 charging board with USB-C
  • power switch