NAME

       Device::USB::PCSensor::HidTEMPer::NTC::Internal - The HidTEMPerNTC external sensor

VERSION

       Version 0.02

SYNOPSIS

       None

DESCRIPTION

       This is the implementation of the HidTEMPerNTC external sensor.

   CONSTANTS
       •  MAX_TEMPERATURE

          The highest temperature(150 degrees celsius) this sensor can detect.

       •  MIN_TEMPERATURE

          The lowest temperature(-50 degrees celsius) this sensor can detect.

       •  INITIAL_GAIN

          The initial gain value used to calculate voltage returned

       •  CALIBRATION_VALUES

          Values used to calculate Volt7705Calibration

   METHODS
       •  new()

          Returns a new External sensor object.

       •  celsius()

          Returns the current temperature from the device in celsius degrees.

          The formula used to calculate value based on a calibrated key value is created using
          the Eureqa tool from Cornell Computational Synthesis Lab,
          http://ccsl.mae.cornell.edu/eureqa.

          Resulting in the use of this formula instead of the provided number list:
          f(y)=66.7348/(66.7275/(67.8088 - 9.70353*log(0.000251309 + y*y)) - 0.21651)

          If you find another formula that is more accurate please drop me a line.  The data used
          can be found in the source code of this file.

INHERIT METHODS FROM

       Device::USB::PCSensor::HidTEMPer::Sensor

DEPENDENCIES

       This module internally includes and takes use of the following packages:

         use Carp;
         use Time::HiRes qw / sleep /;
         use Device::USB::PCSensor::HidTEMPer::Sensor;

       This module uses the strict and warning pragmas.

BUGS

       Please report any bugs or missing features using the CPAN RT tool.

FOR MORE INFORMATION

       None

AUTHOR

       Magnus Sulland < msulland@cpan.org >

ACKNOWLEDGEMENTS

       This code includes findings done by Robin B. Jensen, http://www.drunkardswalk.dk, when
       converting the received hex values into volt.

COPYRIGHT & LICENSE

       Copyright (c) 2010-2011 Magnus Sulland

       This program is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

perl v5.14.2                                2Device::USB::PCSensor::HidTEMPer::NTC::External(3pm)