Common Sensor Service Light/Proximity Sensor Wake Event Example.

#include <stdio.h>
#include <asf.h>
#include <led.h>

Macros
#define	ACTIVITY_LED LED4 /* LED to show awake/operating */

#define	LIGHT_LED LED1 /* LED to indicate light sensor interrupt */

#define	LIGHT_SAMPLE_RATE (10) /* Light sensor sample rate (Hz) */

#define	LIGHT_THRESH (300) /* Light threshold (lux) */

#define	LIGHT_WAKE (true) /* If true, use light level to wake up */

#define	PROX_CURRENT_mA (50) /* Prox sensor LED current value (mA) */

#define	PROX_LED LED0 /* LED to indicate proximity sensor interrupt */

#define	PROX_SAMPLE_RATE (10) /* proximity sensor sample rate (Hz) */

#define	PROX_THRESH (100) /* Set "near" proximity threshold (counts) */

#define	PROX_THRESHOLD (100) /* Manual prox. sensor threshold for "near" */

#define	PROX_WAKE (true) /* If true, use near proximity to wake up */

#define	SCALED_DATA (true)

#define	SET_PROX_CURRENT (true) /* If true, manually set proximity current */

#define	SET_PROX_THRESHOLD

#define	USE_PRINTF (true)

Functions
static void	light_event (volatile sensor_event_data_t event_data, volatile void in)

int	main (void)
	Inertial sensor demo application entry. More...

static void	prox_event (volatile sensor_event_data_t event_data, volatile void in)

Variables
volatile sensor_data_t	light_data = { .scaled = SCALED_DATA }

sensor_t	light_dev

bool	light_event_occurred = false

volatile int16_t	prox_channel

volatile sensor_data_t	prox_data = { .scaled = SCALED_DATA }

sensor_t	prox_dev

bool	prox_event_occurred = false

static const char *const	prox_labels [4]
	Strings to display based on proximity values. More...

#define ACTIVITY_LED LED4 /* LED to show awake/operating */

Referenced by main().

#define LIGHT_LED LED1 /* LED to indicate light sensor interrupt */

Referenced by light_event().

#define LIGHT_SAMPLE_RATE (10) /* Light sensor sample rate (Hz) */

Referenced by main().

#define LIGHT_THRESH (300) /* Light threshold (lux) */

Referenced by main().

#define LIGHT_WAKE (true) /* If true, use light level to wake up */

#define PROX_CURRENT_mA (50) /* Prox sensor LED current value (mA) */

Referenced by main().

#define PROX_LED LED0 /* LED to indicate proximity sensor interrupt */

Referenced by prox_event().

#define PROX_SAMPLE_RATE (10) /* proximity sensor sample rate (Hz) */

Referenced by main().

#define PROX_THRESH (100) /* Set "near" proximity threshold (counts) */

#define PROX_THRESHOLD (100) /* Manual prox. sensor threshold for "near" */

Referenced by main().

#define PROX_WAKE (true) /* If true, use near proximity to wake up */

#define SCALED_DATA (true)

Referenced by main().

#define SET_PROX_CURRENT (true) /* If true, manually set proximity current */

#define SET_PROX_THRESHOLD

Value:

(true) /* If true, manually set proximity

* threshold */

#define USE_PRINTF (true)

static void light_event	(	volatile sensor_event_data_t *	event_data,
		volatile void *	in
	)

static

Light Sensor Event Callback Routine

References sensor_event_data_t::data, light_event_occurred, and LIGHT_LED.

Referenced by main().

int main ( void )

Inertial sensor demo application entry.

After initializing the Xplained platform and sensor boards, this application attaches descriptors to the ambient light and proximity sensor devices on an Xplained inertial sensor board. The sensors are configured to wake up the processor if given threshold values are surpassed.

References ACTIVITY_LED, sensor_device_t::caps, delay_ms, sensor_desc::drv, sensor_desc::err, sensor_data_t::light, light_event(), light_event_occurred, LIGHT_SAMPLE_RATE, LIGHT_THRESH, sensor_caps_t::name, prox_channel, PROX_CURRENT_mA, prox_event(), prox_event_occurred, prox_labels, PROX_SAMPLE_RATE, PROX_THRESHOLD, sensor_data_t::proximity, SCALED_DATA, sensor_add_event(), sensor_attach(), sensor_device_id(), SENSOR_EVENT_HIGH_LIGHT, SENSOR_EVENT_NEAR_PROXIMITY, sensor_platform_init(), sensor_set_channel(), sensor_set_current(), sensor_set_sample_rate(), sensor_set_threshold(), SENSOR_THRESHOLD_HIGH_LIGHT, SENSOR_THRESHOLD_NEAR_PROXIMITY, SENSOR_TYPE_LIGHT, SENSOR_TYPE_PROXIMITY, sleepmgr_enter_sleep(), sleepmgr_init(), sleepmgr_lock_mode(), and sensor_data_t::timestamp.

static void prox_event	(	volatile sensor_event_data_t *	event_data,
		volatile void *	in
	)

static

Proximity Sensor Event Callback Routine

References sensor_event_data_t::channel, sensor_event_data_t::data, prox_channel, prox_event_occurred, and PROX_LED.

Referenced by main().

volatile sensor_data_t light_data = { .scaled = SCALED_DATA }

Referenced by main(), sfh5712_get_light(), and sfh7770_get_light().

sensor_t light_dev

Referenced by main().

bool light_event_occurred = false

Referenced by light_event(), and main().

volatile int16_t prox_channel

Referenced by main(), and prox_event().

volatile sensor_data_t prox_data = { .scaled = SCALED_DATA }

sensor_t prox_dev

bool prox_event_occurred = false

const char* const prox_labels[4]

static

Initial value:

= {
    "none  ",       
    "FAR   ",       
    "MEDIUM",       
    "NEAR  "        
}

Strings to display based on proximity values.

Referenced by main().

Microchip® Advanced Software Framework

Macros

Functions

Variables