static void send_update(size_t pos, char *buf)
{
uint32_t pressure;
uint16_t rawtemp, rawhum;
int temp, hum, temp_abs, hum_abs, pressure_abs;
uint8_t status;
tcs37727_data_t light_data;
hdc1000_read(&th_dev, &rawtemp, &rawhum);
hdc1000_convert(rawtemp, rawhum, &temp, &hum);
temp_abs = temp / 100;
hum_abs = hum / 100;
temp -= temp_abs * 100;
hum -= hum_abs * 100;
mpl3115a2_read_pressure(&p_dev, &pressure, &status);
pressure_abs = pressure / 100000;
pressure -= pressure_abs * 100000;
//mpl3115a2_read_temp(&p_dev, &temp);
tcs37727_read(&light_dev, &light_data);
pos += sprintf(&buf[pos], "{\"n\":\"s:temp\", \"u\":\"°C\", \"v\":\"%2i.%03i\"},",
temp_abs, temp);
pos += sprintf(&buf[pos], "{\"n\":\"s:hum\", \"u\":\"%%RH\", \"v\":\"%2i.%03i\"},",
hum_abs, hum);
pos += sprintf(&buf[pos], "{\"n\":\"s:pres\", \"u\":\"bar\", \"v\":\"%2i.%03i\"},",
pressure_abs, (unsigned int) pressure);
pos += sprintf(&buf[pos], "{\"n\":\"s:rgb\", \"u\":\"RGB\", \"v\":\"[%"PRIu32", %"PRIu32", %"PRIu32"]\"}]",
light_data.red, light_data.green, light_data.blue);
hdc1000_startmeasure(&th_dev);
send_coap_post((uint8_t *)buf, pos);
}
int main(void)
{
hdc1000_t dev;
uint16_t rawtemp, rawhum;
int temp, hum;
puts("HDC1000 Temperature and Humidity Sensor driver test application\n");
printf("Initializing HDC1000 sensor at I2C_%i... ", TEST_HDC1000_I2C);
if (hdc1000_init(&dev, TEST_HDC1000_I2C, TEST_HDC1000_ADDR) == 0) {
puts("[OK]\n");
}
else {
puts("[Failed]");
return -1;
}
while (1) {
if (hdc1000_startmeasure(&dev)) {
puts("Start measure failed.");
return -1;
}
vtimer_usleep(HDC1000_CONVERSION_TIME);
hdc1000_read(&dev, &rawtemp, &rawhum);
printf("Raw data T: %5i RH: %5i\n", rawtemp, rawhum);
hdc1000_convert(rawtemp, rawhum, &temp, &hum);
printf("Data T: %d RH: %d\n", temp, hum);
vtimer_usleep(SLEEP);
}
return 0;
}
/**
* @brief Measures the temperature and humitity with a HDC1000.
*
* @param[out] temp the measured temperature in degree celsius * 100
* @param[out] hum the measured humitity in % * 100
*/
void hdc1000_measure(int *temp, int *hum) {
uint16_t rawtemp;
uint16_t rawhum;
if (hdc1000_startmeasure(&hdcDev)) {
puts("[sensors] ERROR: HDC1000 starting measure failed");
return;
}
// wait for the measurment to finish
xtimer_usleep(HDC1000_CONVERSION_TIME); //26000us
hdc1000_read(&hdcDev, &rawtemp, &rawhum);
hdc1000_convert(rawtemp, rawhum, temp, hum);
printf("[sensors] INFO: HDC1000 Data T: %d RH: %d\n", *temp, *hum);
}
