Functions to create and initialize the driver.

How to create the driver. More...

Collaboration diagram for Functions to create and initialize the driver.:

Functions
hcsr501_p	hcsr501_create (volatile uint8_t *port, uint8_t portPin)
	Create the HC-SR501 driver. More...
void	hcsr501_destroy (hcsr501_p instance)
	Destroy the HC-SR501 driver. More...

Detailed Description

How to create the driver.

Function Documentation

hcsr501_create()

hcsr501_p hcsr501_create	(	volatile uint8_t *	port,
		uint8_t	portPin
	)

Create the HC-SR501 driver.

Creates and initialize the driver.

Note

The driver must be destroyed when it is not needed anymore hcsr501_destroy.

Parameters

[in]	*port	pointer to the PORT the PIR sensor is connected to (e.g. &PORTA).
[in]	portPin	in the PORT the PIR sensor is connected to (e.g. PA3).

Returns

instance pointer

hcsr501_destroy()

void hcsr501_destroy

(

hcsr501_p

instance

)

Destroy the HC-SR501 driver.

Destroys the driver after use. The HEAP memory used for the driver will be freed again.

Note

The driver should only be destroyed when it is not needed anymore.

Parameters

[in]

instance

driver instance to be destroyed hcsr501_create.