NAME

RPi::Const - Constant variables for embedded programming, including the RPi:: family of modules

SYNOPSIS

use RPi::Const (:all);# or...use RPi::Const (:pinmode);# etc

DESCRIPTION

This module optionally exports selections or all constant variables used within theRPi::WiringPi suite.

CONSTANT EXPORT TAGS

These are the individual grouping of export tags. The:all tag includes all of the below.

:mode

Setup modes. This is what determines which pin numbering scheme you're using. SeewiringPi setup modes for details.

RPI_MODE_WPI      =>  0, # wiringPi schemeRPI_MODE_GPIO     =>  1, # GPIO schemeRPI_MODE_GPIO_SYS =>  2, # GPIO scheme in SYS modeRPI_MODE_PHYS     =>  3, # physical pin layout schemeRPI_MODE_UNINIT   => -1, # setup not yet run

:pinmode

Pin modes.

INPUT            => 0,OUTPUT           => 1,PWM_OUT          => 2,GPIO_CLOCK       => 3,SOFT_PWM_OUTPUT  => 4,  # reservedSOFT_TONE_OUTPUT => 5,  # reservedPWM_TONE_OUTPUT  => 6,  # reserved

:altmode

Pin ALT modes.

ALT0 => 4,ALT1 => 5,ALT2 => 6,ALT3 => 7,ALT4 => 3,ALT5 => 2,

:pull

Internal pin pull up/down resistor state.

PUD_OFF  => 0,PUD_DOWN => 1,PUD_UP   => 2,

:state

HIGH => 1,LOW  => 0,ON   => 1,OFF  => 0,

:pwm_mode

The modes the PWM can be set to.

PWM_MODE_MS  => 0,PWM_MODE_BAL => 1,

:pwm_defaults

Hardware defaults for PWM settings.

PWM_DEFAULT_MODE => 1, # balanced modePWM_DEFAULT_CLOCK => 32,PWM_DEFAULT_RANGE => 1023

:interrupt

Edge detection states for interrupts.

EDGE_SETUP   => 0,  # reservedEDGE_FALLING => 1,EDGE_RISING  => 2,EDGE_BOTH    => 3,

:mcp23017_registers

Hardware register locations and related info for the MCP23107 GPIO Expander

MCP23017_IODIRA     => 0x00,MCP23017_IODIRB     => 0x01,MCP23017_IPOLA      => 0x02,MCP23017_IPOLB      => 0x03,MCP23017_GPINTENA   => 0x04,MCP23017_GPINTENB   => 0x05,MCP23017_DEFVALA    => 0x06,MCP23017_DEFVALB    => 0x07,MCP23017_INTCONA    => 0x08,MCP23017_INTCONB    => 0x09,MCP23017_IOCONA     => 0x0A,MCP23017_IOCONB     => 0x0B,MCP23017_GPPUA      => 0x0C,MCP23017_GPPUB      => 0x0D,MCP23017_INTFA      => 0x0E,MCP23017_INTFB      => 0x0F,MCP23017_INTCAPA    => 0x10,MCP23017_INTCAPB    => 0x11,MCP23017_GPIOA      => 0x12,MCP23017_GPIOB      => 0x13,MCP23017_OLATA      => 0x14,MCP23017_OLATB      => 0x15,MCP23017_INPUT      => 1,MCP23017_OUTPUT     => 0

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.