MCP23017Button Class Reference

Represents a button on an MCP23017 GPIO pin. More...

#include <MCP23017Button.h>

Inheritance diagram for MCP23017Button:

Collaboration diagram for MCP23017Button:

Public Member Functions
	MCP23017Button (Adafruit_MCP23017 *io, inputid_t id, inputpin_t pin, bool activeLow=true, bool pullUp=true)
	Creates a new button on an MCP23017 GPIO pin. More...
inputpin_t	getPin () const
	Gets the pin the button is attached to. More...
bool	isActiveLow () const
	Determines if the pin logic is active low. More...
bool	isPullUp () const
	Determines if the pin is pulled high. More...

Protected Member Functions
uint8_t	getPhysicalState () const

Detailed Description

Represents a button on an MCP23017 GPIO pin.

Constructor & Destructor Documentation

MCP23017Button::MCP23017Button	(	Adafruit_MCP23017 *	io,
		inputid_t	id,
		inputpin_t	pin,
		bool	activeLow = true,
		bool	pullUp = true
	)

Creates a new button on an MCP23017 GPIO pin.

Parameters

io	Pointer to the MCP23017 driver
id	ID of the button
pin	Pin the button is attached to
activeLow	If the button logic is active low
pullUp	If the pin should be pulled high

Member Function Documentation

uint8_t MCP23017Button::getPhysicalState ( ) const

protected

inputpin_t MCP23017Button::getPin ( ) const

inline

Gets the pin the button is attached to.

Returns

Pin number

bool MCP23017Button::isActiveLow ( ) const

inline

Determines if the pin logic is active low.

Returns

True if active low

bool MCP23017Button::isPullUp ( ) const

inline

Determines if the pin is pulled high.

Returns

True if pull up active

---

The documentation for this class was generated from the following files:

• firmware/lib/DilbertLib/MCP23017Button.h
• firmware/lib/DilbertLib/MCP23017Button.cpp