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# Copyright (c) 2014 Timm Murray |
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# All rights reserved. |
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# |
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# Redistribution and use in source and binary forms, with or without |
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# modification, are permitted provided that the following conditions are met: |
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# |
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# * Redistributions of source code must retain the above copyright notice, |
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# this list of conditions and the following disclaimer. |
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# * Redistributions in binary form must reproduce the above copyright |
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# notice, this list of conditions and the following disclaimer in the |
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# documentation and/or other materials provided with the distribution. |
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# |
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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# POSSIBILITY OF SUCH DAMAGE. |
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package Device::WebIO::Device::ADC; |
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$Device::WebIO::Device::ADC::VERSION = '0.010'; |
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use v5.12; |
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use Moo::Role; |
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with 'Device::WebIO::Device'; |
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requires 'adc_bit_resolution'; |
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requires 'adc_volt_ref'; |
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requires 'adc_pin_count'; |
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requires 'adc_input_int'; |
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sub adc_max_int |
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{ |
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my ($self, $pin) = @_; |
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my $bit_resolution = $self->adc_bit_resolution( $pin ); |
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return 2 ** $bit_resolution - 1; |
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} |
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sub adc_input_float |
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{ |
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my ($self, $pin) = @_; |
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my $in = $self->adc_input_int( $pin ); |
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my $max_int = $self->adc_max_int( $pin ); |
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my $in_float = $in / $max_int; |
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return $in_float; |
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} |
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sub adc_input_volts |
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{ |
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my ($self, $pin) = @_; |
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my $in_float = $self->adc_input_float( $pin ); |
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my $volt_ref = $self->adc_volt_ref( $pin ); |
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my $in_volt = $volt_ref * $in_float; |
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return $in_volt; |
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} |
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1; |
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__END__ |