int main(void)
{
lps331ap_t dev;
int temp, pres;
int temp_abs, pres_abs;
puts("LPS331AP pressure sensor test application\n");
printf("Initializing LPS331AP sensor at I2C_%i... ", TEST_LPS331AP_I2C);
if (lps331ap_init(&dev, TEST_LPS331AP_I2C, TEST_LPS331AP_ADDR, RATE) == 0) {
puts("[OK]\n");
}
else {
puts("[Failed]");
return 1;
}
while (1) {
pres = lps331ap_read_pres(&dev);
temp = lps331ap_read_temp(&dev);
pres_abs = pres / 1000;
pres -= pres_abs * 1000;
temp_abs = temp / 1000;
temp -= temp_abs * 1000;
printf("Pressure value: %2i.%03i bar - Temperature: %2i.%03i °C\n",
pres_abs, pres, temp_abs, temp);
xtimer_usleep(SLEEP);
}
return 0;
}
static int read_temp(const void *dev, phydat_t *res)
{
res->val[0] = (int16_t)(lps331ap_read_temp((const lps331ap_t *)dev) / 10);
res->unit = UNIT_TEMP_C;
/* above division by ten leads to °C * 10^-2*/
res->scale = -2;
return 1;
}
/**
* Sensors
*/
static void temperature_sensor()
{
int16_t value;
lps331ap_read_temp(&value);
printf("Chip temperature measure: %f\n", 42.5 + value / 480.0);
}