XPointDriver implementation that calls digitalWrite() per node. More...

#include <ArduinoDirectGPIODriver.h>

Inheritance diagram for ArduinoDirectGPIODriver:

Public Types
typedef uint8_t(*	MapFn) (uint8_t r, uint8_t c)
	Function pointer type: `(row, col) → Arduino pin number`.

Public Member Functions
	ArduinoDirectGPIODriver (uint8_t rows, uint8_t cols, MapFn map, uint8_t maxPin)
	Construct the driver.

void	begin () override
	Iterate all nodes and call `pinMode(OUTPUT)` + `digitalWrite(LOW)`.

void	setNodeHardware (uint8_t r, uint8_t c, bool state) override
	Call `pinMode(OUTPUT)` and drive the pin HIGH or LOW.

void	commitPhysicalUpdates () override
	No-op — writes commit immediately in setNodeHardware().

Public Member Functions inherited from XPointDriver
virtual	~XPointDriver ()

virtual void	setNodeLevel (uint8_t r, uint8_t c, uint16_t level)
	Set an analog drive level for node (r, c).

virtual void	releaseNode (uint8_t, uint8_t)
	De-energize the coil that was pulsed on node (r, c).

Detailed Description

XPointDriver implementation that calls digitalWrite() per node.

Suitable for direct relay drive on any Arduino-compatible MCU. Each node change results in an immediate digitalWrite() call — no buffering.

Member Typedef Documentation

◆ MapFn

typedef uint8_t(* ArduinoDirectGPIODriver::MapFn) (uint8_t r, uint8_t c)

Function pointer type: (row, col) → Arduino pin number.

Constructor & Destructor Documentation

◆ ArduinoDirectGPIODriver()

ArduinoDirectGPIODriver::ArduinoDirectGPIODriver	(	uint8_t	rows,
		uint8_t	cols,
		MapFn	map,
		uint8_t	maxPin
	)

Construct the driver.

Parameters

[in]	rows	Row count (used by begin() to iterate all nodes).
[in]	cols	Column count.
[in]	map	Mapper; must return a valid `digitalWrite()` pin number.
[in]	maxPin	Highest pin number the mapper can return (bounds guard).

Member Function Documentation

◆ begin()

void ArduinoDirectGPIODriver::begin ( )

overridevirtual

Iterate all nodes and call pinMode(OUTPUT) + digitalWrite(LOW).

Configures only the pins the mapper actually uses to avoid clobbering special-purpose pins (RX/TX, SPI, I2C, etc.).

Implements XPointDriver.

◆ commitPhysicalUpdates()

void ArduinoDirectGPIODriver::commitPhysicalUpdates ( )

inlineoverridevirtual

No-op — writes commit immediately in setNodeHardware().

Reimplemented from XPointDriver.

◆ setNodeHardware()

void ArduinoDirectGPIODriver::setNodeHardware	(	uint8_t	r,
		uint8_t	c,
		bool	state
	)