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DS1820 Module
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This module implements the class DS1820 to read OneWire temperature sensors DS18b20 and DS18s20 connected to a DS2482 I2C-OneWire bridge (`datasheet <http://pdfserv.maximintegrated.com/en/ds/DS18S20.pdf>`_). 

    
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DS1820 class
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.. class:: DS1820(serial,ow)
        
        Creates a DS1820 instance using the OneWire bridge *ow* with OneWire serial id *serial*.

    
.. method:: read()

        Returns the temperature readings as float applying the correct conversion for different DS1820 models.
        If the serial is wrong, raises *UnsupportedError*.