m5::unit::UnitAS312 Class Reference

AS312 digital PIR motion sensor unit. More...

#include <unit_AS312.hpp>

Inheritance diagram for m5::unit::UnitAS312:

Classes
struct	config_t
	Settings for begin. More...

Public Member Functions
config_t	config () const
	Gets the config values.
void	config (const config_t &cfg)
	Set the config values.
bool	begin () override
void	update (const bool force=false) override
Detection state
bool	isDetected () const
	Current detection state.
bool	wasDetected () const
	Rising edge detection.
bool	wasReleased () const
	Falling edge detection.
Direct reading
bool	readDetection (bool &detected)
	Read the sensor pin state directly.

Static Public Attributes
static constexpr uint32_t	HOLD_TIME_MS {2300}
	AS312 hold time in milliseconds (~2.3s)

Detailed Description

AS312 digital PIR motion sensor unit.

The AS312 is a passive infrared (PIR) sensor with digital output. It detects motion by sensing changes in infrared radiation from human bodies or warm objects. The sensor outputs HIGH when motion is detected, LOW otherwise. Timing is fixed internally: ~2.3s hold time, ~2.3s blocking time.

Member Function Documentation

isDetected()

bool m5::unit::UnitAS312::isDetected ( ) const

inline

Current detection state.

Returns

true if motion is currently detected (pin is HIGH)

readDetection()

bool m5::unit::UnitAS312::readDetection

(

bool &

detected

)

Read the sensor pin state directly.

Parameters

[out]

detected

true if motion is detected

Returns

True if successful

wasDetected()

bool m5::unit::UnitAS312::wasDetected ( ) const

inline

Rising edge detection.

Returns

true if a new detection occurred since the last update (LOW -> HIGH transition)

wasReleased()

bool m5::unit::UnitAS312::wasReleased ( ) const

inline

Falling edge detection.

Returns

true if detection ended since the last update (HIGH -> LOW transition)