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lib/Device/Velleman/K8055/libk8055.pm  view on Meta::CPAN

=head2 ReadAllAnalog($data1, $data2);

This reads the values from the two analog ports into $data1 and $data2.

=head2 OutputAnalogChannel($channel, $data);

This outputs $data to the analog channel indicated by $channel.
The indicated 8-bit Digital to Analogue Converter channel is altered according to the new data.
This means that the data corresponds to a specific voltage. The value 0 corresponds to a
minimum output voltage (0 Volt) and the value 255 corresponds to a maximum output voltage (+5V).
A value of $data lying in between these extremes can be translated by the following formula :
$data / 255 * 5V.

=head2 OutputAllAnalog($data1, $data2);

This outputs $data1 to the first analog channel, and $data2 to the
second analog channel. See OutputAnalogChannel for more information.

=head2 ClearAnalogChannel($channel);

This clears the analog channel indicated by $channel. The selected DA-channel is set to