46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
|
#include "contiki.h"
|
||
|
|
#include "dev/light-sensor.h"
|
||
|
|
#include "dev/sht11-sensor.h"
|
||
|
|
#include "dev/button-sensor.h"
|
||
|
|
#include <stdio.h> // For printf()
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
PROCESS(calculation, "Calculation");
|
||
|
|
AUTOSTART_PROCESSES(&calculation);
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
PROCESS_THREAD(calculation, ev, data)
|
||
|
|
{
|
||
|
|
static struct etimer timer;
|
||
|
|
|
||
|
|
PROCESS_BEGIN();
|
||
|
|
etimer_set(&timer, CLOCK_CONF_SECOND);
|
||
|
|
|
||
|
|
SENSORS_ACTIVATE(light_sensor); // need this for temperature sensor in Simulation
|
||
|
|
SENSORS_ACTIVATE(sht11_sensor);
|
||
|
|
SENSORS_ACTIVATE(button_sensor); // activate button too
|
||
|
|
|
||
|
|
while(1)
|
||
|
|
{
|
||
|
|
PROCESS_WAIT_EVENT(); // wait for an event
|
||
|
|
|
||
|
|
if (ev==PROCESS_EVENT_TIMER)
|
||
|
|
{
|
||
|
|
int lightData = light_sensor.value(LIGHT_SENSOR_PHOTOSYNTHETIC);
|
||
|
|
printf("Reading (raw light intensity) = %d\n", lightData);
|
||
|
|
|
||
|
|
etimer_reset(&timer);
|
||
|
|
}
|
||
|
|
else if (ev==sensors_event && data==&button_sensor)
|
||
|
|
{
|
||
|
|
// When a button is pressed, we should calculate the square root
|
||
|
|
int lightData = light_sensor.value(LIGHT_SENSOR_PHOTOSYNTHETIC);
|
||
|
|
printf("Reading (raw light intensity) = %d\n", lightData);
|
||
|
|
|
||
|
|
// Do your calculation here...
|
||
|
|
printf("The square root of the last reading = ???\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
PROCESS_END();
|
||
|
|
}
|
||
|
|
/*---------------------------------------------------------------------------*/
|