This project is intended to provide a prometheus exporter for the DS18B20 based USB HID Temp Sensor made by Diamex GmbH (https://www.led-genial.de/USB-Temperatur-Sensor-Tester-fuer-DS18B20-Rev-C)
As a test util there is a cli version as well, which just outputs all active sensors.
It was initially inspired by https://github.com/kybernetyk/tempsense
you need a recent golang build environment, gcc and linux headers (for karalabe/hid) to build the tempsense-exporter.
go build -o . ./cmd/...
go build -o . ./cmd/tempsense-exporter
go build -o . ./cmd/tempsense-cli
go get github.com/vgropp/tempsense-exporter
cd $GOPATH/src/github.com/vgropp/tempsense-exporter
go install ./cmd/...
$GOPATH/bin/tempsense-exporter -h
Usage of /home/tric/tempsense-exporter:
-address string
The address to listen on for HTTP requests. (default ":9181")
$GOPATH/bin/tempsense-cli
Run the exporter in docker might need some tweaking. First you have to expose the usb device by adding --device=/dev/bus/usb. Additional the user in docker needs access to the device file. The default is gid 46 (group plugdev in debian). Override the default gid 46 by adding -u 1000:<gid> to your docker run command. The exporter is reachable via port 9181, override this with -p <port>:9181
Simple example:
docker run --device=/dev/bus/usb -p 9181:9181 ghcr.io/vgropp/tempsense-exporter:latest
Full example:
docker run --device=/dev/bus/usb -p 9182:9181 -u 1000:46 ghcr.io/vgropp/tempsense-exporter:latest
tempsense_temperature_cwith label device, sensors and serial (tempsense_temperature_c{device="1",sensor="1",serial="28b3bee62b200327"} 27.8)
# HELP tempsense_temperature_c shows current temperature as reported by the ds18b20
# TYPE tempsense_temperature_c gauge
tempsense_temperature_c{device="1",sensor="1",serial="28b3bee62b200327"} 27.4