Class: TemperatureSensor

Inherits:
Object
  • Object
show all
Defined in:
lib/w1temp.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.initialize ⇒ Object 



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# File 'lib/w1temp.rb', line 2

def self.initialize
  `sudo modprobe w1-gpio`
  `sudo modprobe w1-gpio`
end

Instance Method Details

#reading ⇒ Object 



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# File 'lib/w1temp.rb', line 7

def reading
  paths = Dir["/sys/bus/w1/devices/*"]
  temperature_sensor_path = paths.select{|path| path.include?('-')}.first + '/w1_slave'
  file_contents = File.read(temperature_sensor_path)
  temperature_data = file_contents.split('t=').last
  temperature =  temperature_data.to_f / 1000
  return temperature
end