This gem makes interfacing with the DS18B20 temperature easier over 1-Wire.
After setting it up correctly make sure you have the correct file path where it's output is being recorded.
The file name on raspberry pi should be
w1_slave. If you don't know where the file is located - please read : DS18B20 - Temperature Sensing.
After making sure that you have the file path and that output looks similar to one in the tutorial above, you can easily use this gem following the instructions below.
Add this line to your application's Gemfile:
And then execute:
Or install it yourself as:
$ gem install ds18b20
2. Create Instance with Proper File Path
sensor = Ds18b20::Parser.new("/sys/bus/w1/devices/28-800000048d57/w1_slave")
3. Getting Temperature
sensor.celsius #=> 28.5625 sensor.fahrenheit #=> 82.0625 sensor.kelvin #=> 300.9
After checking out the repo, run
bin/setup to install dependencies. Then, run
rake spec to run the tests. You can also run
bin/console for an interactive prompt that will allow you to experiment.
Bug reports and pull requests are welcome on GitHub at https://github.com/owaiswiz/ds18b20.
The gem is available as open source under the terms of the MIT License.