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)
{
puts("MPL3115A2 pressure sensor driver test application\n");
printf("Initializing MPL3115A2 sensor at I2C_%i... ", mpl3115a2_params[0].i2c);
if (mpl3115a2_init(&dev, &mpl3115a2_params[0]) != MPL3115A2_OK) {
puts("[FAILED] init device!");
return 1;
}
if (mpl3115a2_set_active(&dev) != MPL3115A2_OK) {
puts("[FAILED] activate measurement!");
return 2;
}
puts("[SUCCESS]");
while (1) {
uint32_t pressure;
int16_t temp;
uint8_t status;
xtimer_usleep(SLEEP);
if ((mpl3115a2_read_pressure(&dev, &pressure, &status) |
mpl3115a2_read_temp(&dev, &temp)) != MPL3115A2_OK) {
puts("[FAILED] read values!");
}
else {
printf("Pressure: %u Pa, Temperature: %3d.%d C, State: %#02x\n",
(unsigned int)pressure, temp/10, abs(temp%10), status);
}
}
return 0;
}
