bebehei / tempsense

OS X command line client for the Diamex AVR Temp Sensor (DS18B20)

tempsense

Command line utilty to read out data from the AVR Temp Sensor made by Diamex GmbH.

As seen here: http://www.led-genial.de/USB-Temperatur-Sensor-Tester-fuer-DS18B20

Dependencies

• clang (or gcc) in some newer incarnation
• hidapi

Build & Run

1. download, build and install hidapi (or 'apt-get install libhidapi-dev' on ubuntu/debian)
2. build with:
   • make
3. Connect the Temp Sensor and run
   • MacOS X: ./tempsense
   • Linux: sudo ./tempsense
   • Linux (with udev-rule): ./tempsense

rootless access on Linux

Create a new group specific for all users, allowed to access the temperature sensor.

$ sudo groupadd --system tempsensor
$ sudo usermod -aG tempsensor $USER

Logout from your current session and login again, to gain the new group privileges.

Create a new udev rule in /etc/udev/rules.d/99-tempsensor.rules with the following content:

SUBSYSTEM=="usb", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="0480", GROUP="tempsensor"

After writing the file and replugging your temperature sensor, your account should have permissions to access the sensor.

Copyright & License

This code is licensed under the Affero GPL3 License! (c) J. Szpilewski in 2014, [e-mail]