/ 
RPi-WiringPi-Core-0.03
/ RPi::WiringPi::Core

NAME

RPi::WiringPi::Core - Perl wrapper for Raspberry Pi's wiringPi Core and System functions

DESCRIPTION

You probably want to use the RPi::WiringPi module instead of this one.

This is an XS-based module, and requires wiringPi to be installed.

It provides Perl method access to (at this time, most of) the wiringPi Core along with a few of its system functions.

Although this module can be used directly, it's generally used as a base class for other modules.

METHODS

new()

Returns a new RPi::WiringPi::Core object.

setup()

See wiringPi setup functions for for information on this method.

setup_sys()

See wiringPi setup functions for for information on this method.

setup_gpio()

See wiringPi setup functions for for information on this method.

pin_mode($pin, $mode)

Puts the GPIO pin in either INPUT or OUTPUT mode.

Parameters:

$pin

Mandatory: The GPIO pin number, using wiringPi's pin number representation.

$mode

Mandatory: 0 to have the pin listen on INPUT, and 1 for OUTPUT.

read_pin($pin);

Returns the current state (HIGH/on, LOW/off) of a given pin.

Parameters:

$pin

Mandatory: The wiringPi number representation of the GPIO pin.

write_pin($pin, $state)

Sets the state (HIGH/on, LOW/off) of a given pin.

Parameters:

$pin

Mandatory: The wiringPi number representation of the GPIO pin.

$state

Mandatory: 1 to turn the pin on (HIGH), and 0 to turn it LOW (off).

pull_up_down($pin, $direction)

Enable/disable the built-in pull up/down resistors for a specified pin.

Parameters:

$pin

Mandatory: The wiringPi number representation of the GPIO pin.

$direction

Mandatory: 2 for UP, 1 for DOWN and 0 to disable the resistor.

pwm_write($pin, $value)

Sets the Pulse Width Modulation duty cycle (on time) of the pin.

Parameters:

$pin

Mandatory: The wiringPi number representation of the GPIO pin.

$value

Mandatory: 0 to 1024. 0 is 0% (off) and 1024 is 100% (fully on).

get_alt($pin)

This returns the current mode of the pin (using getAlt() C call). Modes are INPUT 0, OUTPUT 1, PWM 2 and CLOCK 3.

Parameters:

$pin

Mandatory: The wiringPi number representation of the GPIO pin.

AUTHOR

Steve Bertrand, <steveb@cpan.org>

COPYRIGHT AND LICENSE

Copyright (C) 2016 by Steve Bertrand

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.18.2 or, at your option, any later version of Perl 5 you may have available.