Thermometer¶

This example uses the Health Thermometer Profile to send thermometer information:

• Sensor location: thermometer placement on the body. The default value in this application is the ear (``LOCATION_EAR``). The characteristic description shows the other possible values.

• Temperature: the initial temperature is 39.6, and it's incremented by 0.1 every half second. It resets to 39.6 when it reaches 43.0.

For more information see:

• Temperature Service: GATT profile details.

• Temperature Measurement: GATT characteristic details for temperature measurement.

• Temperature Type: GATT characteristic details for temperature type (sensor location).

Running the application¶

Requirements¶

The sample application can be seen on any BLE scanner on a smartphone. If you don't have a scanner on your phone, please install :

- nRF Master Control Panel for Android.

- LightBlue for iPhone.

Hardware requirements are in the main readme.

Building instructions¶

Building instructions for all samples are in the main readme.

Checking for success¶

Note: Screens captures depicted below show what is expected from this example if the scanner used is *nRF Master Control Panel* version 4.0.5. If you encounter any difficulties consider trying another scanner or another version of nRF Master Control Panel. Alternative scanners may require reference to their manuals.

• Build the application and install it on your board as explained in the building instructions.

• Open the BLE scanner on your phone.

• Start a scan.

figure 1 How to start scan using nRF Master Control Panel 4.0.5

• Find your device; it should be named *Therm*.

figure 2 Scan results using nRF Master Control Panel 4.0.5

• Establish a connection with your device.

figure 3 How to establish a connection using Master Control Panel 4.0.5

• Discover the services and the characteristics on the device. The *Health Thermometer* service has the UUID `0x1809` and includes the *Temperature Measurement* characteristic which has the UUID `0x2A1C`.

figure 4 Representation of the Thermometer service using Master Control Panel 4.0.5

• Register for the notifications sent by the *Temperature Measurement* characteristic.

figure 5 How to register to notifications using Master Control Panel 4.0.5

• You should see the temperature value change every half second. It begins at 39.6, goes up to 43.0 (in steps of 0.1), resets to 39.6 and so on.

figure 6 Notifications view using Master Control Panel 4.0.5