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lib/Device/WebIO.pm  view on Meta::CPAN

=item * "V50" (5.0 volt power)

=item * "GND" (ground)

=back


=head2 Input

=head3 set_as_input

  set_as_input( $name, $pin );

Set the given pin as input.

=head3 is_set_input

  is_set_input( $name, $pin );

Check if the given pin is already set as input.

=head3 digital_input_pin_count

  digital_input_pin_count( $name );

Returns how many input pins there are for this device.

=head3 digital_input

  digital_input( $name, $pin );

Returns the input status of the given pin.  1 for on, 0 for off.

=head3 digital_input_port

  digital_input_port( $name );

Returns an integer with each bit representing the on or off status of the 
associated pin.

=head2 Input Callback

These can be used if the device does the C<DigialInputCallback> role.

=head3 digital_input_callback

  digital_input_callback( $name, $pin, $type, $callback );

Set a callback that will be triggered when C<$pin> changes state.  C<$type> 
is one of the constants in the C<DigitalInputCallback> role, which controls 
when the callback is triggered--C<TRIGGER_RISING>, C<TRIGGER_FALLING>, or 
C<TRIGGER_RISING_FALLING>.

C<$callback> is a subref that will be called.

=head3 digital_input_begin_loop

  digital_input_begin_loop( $name );

Start the loop that will trigger callbacks.

=head2 Input AnyEvent

These can be used if the device does the C<DigitalInputAnyEvent> role.

=head3 set_anyevent_condvar

  set_anyevent_condvar( $name, $pin, $cv );

Set an AnyEvent condvar, which will trigger on both the rising and falling 
edge. When triggered, the condvar's callback will be called.

=head2 Output

=head3 set_as_output

  set_as_output( $name, $pin );

Set the given pin as output.

=head3 is_set_output

  is_set_output( $name, $pin );

Check if the given pin is set as output.

=head3 digital_output_pin_count

  digital_output_pin_count( $name );

Returns the number of output pins.

=head3 digital_output

  digital_output( $name, $pin, $value );

Sets the value of the output for the given pin.  1 for on, 0 for off.

=head3 digital_output_port

  digital_output_port( $name, $int );

Sets the value of all output pins.  Each bit of C<$int> corresponds to a pin.

=head2 Analog-to-Digital

=head3 adc_count

  adc_count( $name );

Returns the number of ADC pins.

=head3 adc_resolution

  adc_resolution( $name, $pin );

Returns the number of bits of resolution for the given pin.

=head3 adc_max_int

lib/Device/WebIO.pm  view on Meta::CPAN

  vid_height( $name, $channel );

Return the height of the video channel.

=head3 vid_fps

  vid_fps( $name, $channel );

Return the Frames Per Second of the video channel.

=head3 vid_kbps

  vid_kbps( $name, $channel );

Return the bitrate of the video channel.

=head3 vid_set_width

  vid_set_width( $name, $channel, $width );

Set the width of the video channel.

=head3 vid_set_height

  vid_set_height( $name, $channel, $height );

Set the height of the video channel.

=head3 vid_allowed_content_types

  vid_allowed_content_types( $name, $channel );

Returns a list of MIME types allowed for the given video channel.

=head3 vid_stream

  vid_stream( $name, $channel, $type );

Returns a filehandle for streaming the video channel.  C<$type> is one of the 
MIME types returned by C<vid_allowed_content_types()>.

=head2 Video Callback

These can be used if the device does the C<VideoOutputCallback> role.

=head3 vid_stream_callback

  vid_stream_callback( $name, $channel, $type, $callback );

Set a callback that will be triggered when the given video channel gets a 
new frame.  C<$type> is one of the MIME types returned by 
C<vid_allowed_content_types()>.

Only 1 callback per channel will be kept.

=head3 vid_stream_begin_loop

  vid_stream_begin_loop( $name, $channel );

Start the loop that will trigger callbacks.

=head2 Still Image

=head3 img_channels

  img_channels( $name );

Get the number of still image channels.

=head3 img_width

  img_width( $name, $channel );

Return the width of the image channel.

=head3 img_height

  img_height( $name, $channel );

Return the height of the image channel.

=head3 img_quality

  img_quality( $name, $channel );

Return the quality of the image channel.

=head3 img_set_width

  img_set_width( $name, $channel, $width );

Set the width of the image channel.

=head3 img_set_height

  img_set_height( $name, $channel, $height );

Set the height of the image channel.

=head3 img_set_quality

  img_set_quality( $name, $channel, $height );

Set the quality of the image channel.

=head3 img_allowed_content_types

  img_allowed_content_types( $name, $channel );

Returns a list of MIME types allowed for the given video channel.

=head3 img_stream

  img_stream( $name, $channel, $type );

Returns a filehandle for streaming the video channel.  C<$type> is one of the 
MIME types return by C<img_allowed_content_types()>.

=head2 I2C