Using Z-Wave Multilevel sensor example running on BRD2603A/ZGM230S to read temperature from TMP116 temperature sensor

The following example shows you how to use Z-Wave Multilevel sensor example running on BRD2603A/ZGM230S to read temperature from Texas Instrument TMP116 temperature sensor.

1. Connect Texas Instrument BOOSTXL-BASSENSORS TMP116 TMP V+, GND, and SCL/SDA to pin 20, 1, and 15(PB05)/16(PB05) on EXP-header of BRD2603A.

 

2. Install Z-Wave Debug and Z-Wave Debug Print in project software component to use  DEBUGPRINT to output data to SSv5 console 1.

3.Add the following code into MultilevelSensor_interface_sensor.c

 #define TMP116_I2C_DEVICE                (sl_i2cspm_sensor) /**< I2C device used to control the Si7021  */
#define TMP116_I2C_BUS_ADDRESS           0x48//TMP116 0x40               /**< I2C bus address                        */

static I2C_TransferReturn_TypeDef TMP116_transaction(uint16_t flag,
                                                     uint8_t *writeCmd,
                                                     size_t writeLen,
                                                     uint8_t *readCmd,
                                                     size_t readLen)
{
  I2C_TransferSeq_TypeDef seq;
  I2C_TransferReturn_TypeDef ret;

  seq.addr = TMP116_I2C_BUS_ADDRESS << 1;
  seq.flags = flag;

  switch (flag) {
    // Send the write command from writeCmd
    case I2C_FLAG_WRITE:
      seq.buf[0].data = writeCmd;
      seq.buf[0].len  = writeLen;

      break;

    // Receive data into readCmd of readLen
    case I2C_FLAG_READ:
      seq.buf[0].data = readCmd;
      seq.buf[0].len  = readLen;

      break;

    // Send the write command from writeCmd
    // and receive data into readCmd of readLen
    case I2C_FLAG_WRITE_READ:
      seq.buf[0].data = writeCmd;
      seq.buf[0].len  = writeLen;

      seq.buf[1].data = readCmd;
      seq.buf[1].len  = readLen;

      break;

    default:
      return i2cTransferUsageFault;
  }

  // Perform the transfer and return status from the transfer
  ret = I2CSPM_Transfer(TMP116_I2C_DEVICE, &seq);

  return ret;
}

uint32_t TMP116_read()
{
  I2C_TransferReturn_TypeDef ret;
  uint8_t temp[2];
  uint8_t cmdReadTemp[1]={0x00};
  int32_t temperature;

  // Wait for sensor to become ready
  //sl_sleeptimer_delay_millisecond(1000);

  // Check for device presence  and compare device ID
  ret = TMP116_transaction(I2C_FLAG_WRITE_READ, cmdReadTemp, 1, temp, 2);
  temperature=temp[0];
  temperature=(temperature<<8)|temp[1];
  //DPRINTF("Temperature = %d\r\n", (int)temperature);
  return temperature*10;
}

4. Replace "MultilevelSensor_temperature_humidity_sensor_read(&rh_data, &temp_data);" with "temp_data=(int32_t)TMP116_read();" in cc_multilevel_sensor_air_temperature_interface_read_value.

5. Build and run the firmware on BRD2603A to see the following temperature reading fromTMP116

 

P.S. If you use Texas Instrument instead of TMP117, it should work similarly.