NAME

  Device::WebIO::Device::DigitalInputCallback - Role for interrupt-driven input

DESCRIPTION

This is an extension of DigitalInput which can trigger callbacks.

REQUIRED METHODS

input_callback_pin

  $dev->input_callback_pin( $pin, $dev->TRIGGER_RISING, sub { ... } )

Set a callback to trigger when the $pin changes state. It can be set to trigger on the rising (TRIGGER_RISING) or falling (TRIGGER_FALLING) edge, or both (TRIGGER_RISING_FALLING).

input_begin_loop

Start the callback loop running.

LICENSE

Copyright (c) 2014 Timm Murray All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice, this list of 
      conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright notice, this list of
      conditions and the following disclaimer in the documentation and/or other materials 
      provided with the distribution.

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