A Prometheus exporter for the Adafruit SCD-40 sensor
This repository provides a collector and systemd service definition so that sensor data from the Adafruit SCD-40/1 can be exported to Prometheus (and then visualized with Grafana).
The exported defines 4 gauges:
scd4x_co2: CO2 concentration in ppmscd4x_temperature: Temperature in degrees Celsiusscd4x_humidity: Relative humidity in percentage
This assumes you have a sensor installed in the system and that it's in the periodic measurment state. See the scd4x repo for more details.
- Clone this repository
- cd into the
scd4x-exporterdirectory - Build the exporter The build command below is for a Raspberry Pi with a 64-bit kernel. Adjust accordingly for your OS and architecture.
GOOS=linux GOARCH=arm64 go build -o scd4x_exporter main.go collector.go- Copy the
scd4x_exporterbinary to/usr/local/bin/
cp scd4x_exporter /usr/local/bin/You may need to sudo the command depending on your user and Linux distribution.
5. Copy the service file to the systemd service directory.
Edit the port in the service file to change the port. By default it uses port 9110 to communicate.
cp scd4x-exporter.service /etc/systemd/system/- Enable and start the service
systemctl enable scd4x-exporter
systemctl start scd4x-exporterYou should now see the counters in Prometheus.