srcnert/SHTC3

SHTC3 Library

Initialize:

/* SHTC3 */
// Initialize I2C Bus
i2c_clear_bus(I2C_SCL, I2C_SDA);
i2c_init();

// initialize sensor module with the i2c address 0x70
etError  error;       // error code
uint16_t id;          // sensor ID
uint16_t temperature; // temperature
uint16_t humidity;    // relative humidity

shtc3_dev_t shtc3_dev;
shtc3_dev.dev_id = 0x70;
shtc3_dev.i2c_write = &my_i2c_write;
shtc3_dev.i2c_read = &my_i2c_read;
shtc3_dev.delay_us = &nrfx_coredep_delay_us;
SHTC3_Init(shtc3_dev);

// wake up the sensor from sleep mode
error = SHTC3_Wakeup();
if(error != NO_ERROR)
{
  NVIC_SystemReset();
}

// demonstration of SoftReset command
error = SHTC3_SoftReset();
if(error != NO_ERROR)
{
  NVIC_SystemReset();
}

// wait for sensor to reset
delay_ms(100);

// demonstration of GetId command
error = SHTC3_GetId(&id);
if(error == NO_ERROR)
{
}
else
{
  NVIC_SystemReset();
}

// ID Check
if((id & 0x083F) == 0x0807)   // Checking the form of the ID
{                             // Bits 11 and 5-0 must match
// SHTC3 CORRECT ID
}

// Start Measurement
error = SHTC3_GetTempAndHumiPollingRaw(&temperature, &humidity);
if(error == NO_ERROR)
{
  printf("SHTC3 TEMP: %d",temperature);
  printf("SHTC3 HUM: %d", humidity);
}
else
{
  printf("STC3 COMM ERROR: %d", error);
  NVIC_SystemReset();
}

// activate the sleep mode of the sensor to save energy
error = SHTC3_Sleep();
if(error != NO_ERROR)
  NVIC_SystemReset();
/* End of SHTC3 */

Usage:

/* Start Measurement of SHTC3 */
etError  error=0;        // error code
uint16_t temperature=0;  // temperature
uint16_t humidity=0;     // relative humidity

// wake up the sensor from sleep mode
error = SHTC3_Wakeup();
if(error != NO_ERROR)
  NVIC_SystemReset();

error = SHTC3_GetTempAndHumiPollingRaw(&temperature, &humidity);
if(error != NO_ERROR)
  NVIC_SystemReset();

// activate the sleep mode of the sensor to save energy
error = SHTC3_Sleep();
if(error != NO_ERROR)
  NVIC_SystemReset();