Prometheus exporter for TFA Dostman AIRCO2NTROL.
Basically, this is co2mon plugged into axum (and of course prometheus), nothing spectacular.
This repo serves mostly as an example, but feel free to open issues for feature requests if that makes it reusable for you.
I'm running this on a Raspberry Pi Zero (which is basically a Raspberry Pi 1), cross-compiling is possible via cross.
# HELP co2_ppm co2 ppm
# TYPE co2_ppm gauge
co2_ppm 478
# HELP temperature_celsius temperature in celsius
# TYPE temperature_celsius gauge
temperature_celsius 22.162506103515625