Texas Instruments Sensor Tag

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Texas Instruments Sensor Tag is a multi sensor Bluetooth LE development platform from Texas Instruments. SimpleLink SensorTag has 10 sensors including ambient light sensor, temperature sensor, humidity sensor and pressure sensor.

Use the TTISensorTag component to communicate with the Texas Instruments Sensor Tag.

Demo Location

You can find the sample projects for the Texas Instruments Sensor Tag in the following IoT demo directories after installing the component:

• Start | Programs | Embarcadero RAD Studio Berlin | Samples and then navigate to:
  • Delphi: Internet of Things\Object Pascal\Thing Connect\TISensorTag
  • C++: Internet of Things\CPP\Thing Connect\TISensorTag

Supported Services

The Texas Instruments Sensor Tag component supports the following Bluetooth LE services and characteristics:

Service	Characteristic	Property	Event	Read	Subscribe	Write
Device Information	Firmware Revision String	FirmwareRevision	OnFirmwareRevisionUpdate
	Hardware Revision String	HardwareRevision	OnHardwareRevisionUpdate
	IEEE 11073-20601 Regulatory Certification Data List	IEEERegulatory	OnIEEERegulatoryUpdate
	Manufacturer Name String	ManufacturerName	OnManufacturerNameUpdate
	Model Number String	ModelNumber	OnModelNumberUpdate
	PnP ID	PnPID	OnPnPIDUpdate
	Serial Number String	SerialNumber	OnSerialNumberUpdate
	Software Revision String	SoftwareRevision	OnSoftwareRevisionUpdate
	System ID	SystemID	OnSystemIDUpdate

The Texas Instruments Sensor Tag component supports the following custom services:

Service	Property	Event	Read	Subscribe	Write	Description
Barometric Pressure Service	PressureConfig	OnPressureConfigUpdate				Returns and writes the pressure configuration data as a TSensorConfig.
	PressureData (*)	OnPressureDataUpdate				Returns the pressure data value.
	PressurePeriod	OnPressurePeriodUpdate				Returns and writes the pressure period between sensor measurements. Valid range is from 10 to 255 (the unit is 10 ms).
Connection Control Service	CCSParameters	OnCCSParametersUpdate				Returns the Gatt CCS parameter.
	RequestCCSParameters					Writes the Gatt CCS parameter.
	DisconnectRequest					Writes 1 byte-field to request the OAD service disconnect.
Humidity Service	HumidityConfig	OnHumidityConfigUpdate				Returns and writes the humidity configuration data as a TSensorConfig.
	HumidityData (*)	OnHumidityDataUpdate				Returns the humidity data value.
	HumidityPeriod	OnHumidityPeriodUpdate				Returns and writes the humidity period between sensor measurements. Valid range is from 10 to 255 (the unit is 10 ms).
IO Service	IOServiceConfig	OnIOServiceConfigUpdate				Returns and writes the IO service configuration data.
	IOServiceData	OnIOServiceDataUpdate				Returns and writes the IO service data.
IR Temperature Service	IRTemperatureConfig	OnIRTemperatureConfigUpdate				Returns and writes the IR temperature configuration data as a TSensorConfig.
	IRTemperatureData (*)	OnIRTemperatureDataUpdate				Returns the IR temperature data value.
	IRTemperaturePeriod	OnIRTemperaturePeriodUpdate				Returns and writes the IR temperature period between sensor measurements. Valid range is from 30 to 255 (the unit is 10 ms).
Luxometer Service	LuxometerConfig	OnLuxometerConfigUpdate				Returns and writes the luxometer configuration data as a TSensorConfig.
	LuxometerData (*)	OnLuxometerDataUpdate				Returns the luxometer data value.
	LuxometerPeriod	OnLuxometerPeriodUpdate				Returns and writes the luxometer period between sensor measurements. Valid range is from 10 to 255 (the unit is 10 ms).
Motion Sensor Service	MotionData (*)	OnMotionDataUpdate				Returns the 9-axis motion sensor data value.
	MotionSensorConfig	OnMotionSensorConfigUpdate				Returns and writes the motion sensor configuration data as a TMotionSensorConfig.
	MotionSensorPeriod	OnMotionSensorPeriodUpdate				Returns and writes the motion sensor period between sensor measurements. Valid range is from 10 to 255 (the unit is 10 ms).
Over the Air Download Service	OADImageBlock	OnOADImageBlockUpdate				Returns and writes the image block.
	OADImageIdentify	OnOADImageIdentifyUpdate				Returns and writes the image identify.
Register Service	RegisterServiceAddress	OnRegisterServiceAddressUpdate				Returns and writes the register address.
	RegisterServiceDeviceID	OnRegisterServiceDeviceIDUpdate				Returns and writes the register service deviceID.
Simple Key Service		OnKeyPressStateUpdate				Returns the Key Press State value.

(*) Note: To either subscribe or read from this property the sensor must be enabled to provide data measurements. For more information, see Enabling Sensors.

Device Details

• Device: Texas Instruments TI Sensor Tag
• Model: CC2650
• Firmware: 0.87
• Technology: Bluetooth LE

Custom Data Types

The Texas Intruments Sensor Tag defines its custom data types in the following unit:

• Iot.Device.TISensorTagTypes

Custom IR Temperature Sensor Data

The TIRTemperatureSensorData type contains the data returned from the IR temperature sensor.

• Value: Raw array of bytes returned from the device.
• IRTemperatureData: Returns the object temperature (IR temperature) value of the device (in Celsius degrees).
• AmbientTemperatureData: Returns the ambient temperature value of the device (in Celsius degrees).

Custom Humidity Data

The THumiditySensorData type contains the data returned from humidity sensor.

• Value: Raw array of bytes returned from the device.
• HumiditySensorData: Relative humidity readings from the humidity sensor (in %RH).
• HumiditySensorTemperature: Temperature reading from the humidity sensor (in Celsius degrees).

Custom Barometric Pressure Data

The TPressureSensorData type contains the barometric pressure data returned from the device.

• Value: Raw array of bytes returned from the device.
• PressureData: Returns the air pressure reading of the device (in mbar).

Custom Luxometer Data

The TLuxometerData type contains ambient light sensor data returned from the device.

• Value: Raw array of bytes returned from the device.
• LuxometerData: Illuminance of the light sensor (in Lux units).

Sensor Configuration Enumeration Type

The TSensorConfig is an enumeration type that is used to configure the sensor. Possible values are:

• Sleep: Disables the sensor so that the consumption is minimized between measurements.
• Start: Enables the sensor so that it provides data measurements that can be read.

Custom Motion Sensor Data

The TMotionSensorData type contains 9-axis motion sensor data returned from the device.

• Value: Raw array of bytes returned from the device.
• AccelerometerData: Returns accelerometer data of the 9-axis motion sensor of the device:
  • X: X-axis motion value of the accelerometer data (in g units).
  • Y: Y-axis motion value of the accelerometer data (in g units).
  • Z: Z-axis motion value of the accelerometer data (in g units).
• GyroscopeData: Returns the gyroscope data of the 9-axis motion sensor of the device:
  • X: X-axis rotation value of the gyroscope data (in degrees/second units).
  • Y: Y-axis rotation value of the gyroscope data (in degrees/second units).
  • Z: Z-axis rotation value of the gyroscope data (in degrees/second units).
• CompassData: Returns the compass data (magnetometer data) of the 9-axis motion sensor of the device:
  • X: X-axis magnetic field value of the compass data (in microTeslas units).
  • Y: Y-axis magnetic field value of the compass data (in microTeslas units).
  • Z: Z-axis magnetic field value of the compass data (in microTeslas units).

Motion Sensor Configuration Data

The TMotionSensorConfig type contains the set of motion sensors that are enabled in the device.

• GyroXAxis: Enables the X-axis of the gyroscope.
• GyroYAxis: Enables the Y-axis of the gyroscope.
• GyroZAxis: Enables the Z-axis of the gyroscope.
• AccelXAxis: Enables the X-axis of the accelerometer.
• AccelYAxis: Enables the Y-axis of the accelerometer.
• AccelZAxis: Enables the Z-axis of the accelerometer.
• CompXAxis: Enables the X-axis of the compass.
• CompYAxis: Enables the Y-axis of the compass.
• CompZAxis: Enables the Z-axis of the compass.
• RangeBit0: Enables the bit 0 value.
• RangeBit1: Enables the bit 1 value.

Custom Key Press State

The TGattKeyPressStateConfig is an enumeration type that is used to configure the key press state configuration (to enable notifications for key hits on the sensor tag). Possible values are Disable, Key, PowerKey, and MagnetField.

Custom IO Service Data

The TIOServiceData contains the configuration of the IO service mode of the device.

• RedLed: Returns if the red led is enabled.
• GreenLed: Returns if the green led is enabled.
• Buzzer: Returns if the buzzer is enabled.
• TestMode: Sensor self test result.

Custom IO Service Configuration Data

The TIOServiceConfig is an enumeration type that is used to configure IO service mode. Possible values are Local, Remote, and Test.

Custom Register Service Address Data

The TRegisterAddress type contains register service address data returned from the device.

• Value: Raw array of bytes returned from the device.
• RegisterLength: The length of the address.
• RegisterInternalAddr: The internal address value of the device.

Custom Register Service DeviceID Data

The TRegisterDeviceID type contains the register service deviceID from the device.

• Value: Raw array of bytes returned from the device.
• DeviceInterface: Returns the interface. Possible values are I2C0, I2C1, SPI1, SPI2, SPI3, and MCU.
• DeviceAddress: Returns the device address value of the device.

Custom Gatt CCS Parameter Data

The TGattCCSParameter type contains the connection control service (CCS) parameters.

• Value: Raw array of bytes returned from the device.
• ConnectionInterval: Connection interval value.
• SlaveLatency: The slave latency value.
• SupervisionTimeout: The supervision timeout value of the readings from the device.

Custom OAD Image Identify

The TOADImageIdentify type contains data to identify the type of image that is active in the device.

• Value: Raw array of bytes returned from the device.
• ImageType: Type of image that is installed in the device. Possible values are TypeA (0) and TypeB (1).
• ImageSize: Size of the installed image.
• UserData: User data.

Custom OAD Image Block

The TOADImageBlock type contains data to identify the type of image that is active in the device.

• Value: Raw array of bytes returned from the device.
• BlockNo: Block number that was set for the current image block.
• OADImageBlock: Image block data to be written to the device.

Known Issues

Discovery Mechanism

• The Texas Instruments Sensor Tag model CC2541 only supports the Connect discovery method type. For more information see Discovery Mechanism Methods and Setting the Discovery Mechanism Method. This issue does not affect model CS2650.

Enabling Sensors

• To enable or disable the motion sensor:
  • Create an instance of TMotionSensorConfig and specify which 9-axis motion sensor you want to enable.
• To enable or disable the humidity sensor, the barometric sensor or the luxometer sensor:
  • Set Start or Sleep by either writing TSensorConfig.Start or TSensorConfig.Sleep to the <PropertyName>Config property. See the example below for more details.

Delphi:

procedure TForm1.Switch1Switch(Sender: TObject);
begin
  if(Switch1.IsChecked) then
  begin
    TISensorTag1.HumidityConfig := TSensorConfig.Start;
    TISensorTag1.SubscribeHumidityData;
  end
  else 
   begin
     TISensorTag1.UnsubscribeHumidityData;
     TISensorTag1.HumidityConfig := TSensorConfig.Sleep;
   end;
end;

C++:

void __fastcall TForm1::Switch1Switch(TObject *Sender)
{
  if (CheckBox1->IsChecked) 
  {
   FTISensorTag1->SubscribeHumidityData();
   FTISensorTag1->HumidityConfig = TSensorConfig::Start;
  }
  else
  {
   FTISensorTag1->UnsubscribeHumidityData();
   FTISensorTag1->HumidityConfig = TSensorConfig::Sleep;
  }
}

Device Specific Information

• Requires Firmware Revision 1.20 or higher.
• Click on the left (red) button on the device to start Bluetooth.

See Also

• Texas Instruments
• Working with ThingConnect Devices
• ThingConnect