ST / Mbed OS mbed-os-example-ble-Thermometer

BLE Thermometer example

Dependencies:   BSP_B-L475E-IOT01

This example is a fork of the following mbed-os example:

https://developer.mbed.org/teams/mbed-os-examples/code/mbed-os-example-ble-Thermometer/

Please read the documentation in this page.

readme.md@39:ac224f69256b, 2017-07-26 (annotated)

Committer:
bcostm
Date:
Wed Jul 26 08:10:04 2017 +0000
Revision:
39:ac224f69256b
Parent:
2:cc8349878a7d 
Add reading of board temp sensor

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 2:cc8349878a7d 1 # Thermometer
mbed_official 2:cc8349878a7d 2
mbed_official 2:cc8349878a7d 3 This example uses the [Health Thermometer Profile](https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.health_thermometer.xml) to send thermometer information:
mbed_official 2:cc8349878a7d 4
mbed_official 2:cc8349878a7d 5 1. Sensor location: thermometer placement on the body. The default value in this application is the ear (``LOCATION_EAR``). The [characteristic description](https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.temperature_type.xml) shows the other possible values.
mbed_official 2:cc8349878a7d 6
mbed_official 2:cc8349878a7d 7 1. 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.
mbed_official 2:cc8349878a7d 8
mbed_official 2:cc8349878a7d 9 For more information see:
mbed_official 2:cc8349878a7d 10
mbed_official 2:cc8349878a7d 11 * [Temperature Service](https://developer.bluetooth.org/gatt/profiles/Pages/ProfileViewer.aspx?u=org.bluetooth.profile.health_thermometer.xml): GATT profile details.
mbed_official 2:cc8349878a7d 12
mbed_official 2:cc8349878a7d 13 * [Temperature Measurement](https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.temperature_measurement.xml): GATT characteristic details for temperature measurement.
mbed_official 2:cc8349878a7d 14
mbed_official 2:cc8349878a7d 15 * [Temperature Type](https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.temperature_type.xml): GATT characteristic details for temperature type (sensor location).
mbed_official 2:cc8349878a7d 16
mbed_official 2:cc8349878a7d 17 # Running the application
mbed_official 2:cc8349878a7d 18
mbed_official 2:cc8349878a7d 19 ## Requirements
mbed_official 2:cc8349878a7d 20
mbed_official 2:cc8349878a7d 21 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 :
mbed_official 2:cc8349878a7d 22
mbed_official 2:cc8349878a7d 23 - [nRF Master Control Panel](https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp) for Android.
mbed_official 2:cc8349878a7d 24
mbed_official 2:cc8349878a7d 25 - [LightBlue](https://itunes.apple.com/gb/app/lightblue-bluetooth-low-energy/id557428110?mt=8) for iPhone.
mbed_official 2:cc8349878a7d 26
mbed_official 2:cc8349878a7d 27 Hardware requirements are in the [main readme](https://github.com/ARMmbed/mbed-os-example-ble/blob/master/README.md).
mbed_official 2:cc8349878a7d 28
mbed_official 2:cc8349878a7d 29 ## Building instructions
mbed_official 2:cc8349878a7d 30
mbed_official 2:cc8349878a7d 31 Building instructions for all mbed OS samples are in the [main readme](https://github.com/ARMmbed/mbed-os-example-ble/blob/master/README.md).
mbed_official 2:cc8349878a7d 32
mbed_official 2:cc8349878a7d 33 ## Checking for success
mbed_official 2:cc8349878a7d 34
mbed_official 2:cc8349878a7d 35 **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.
mbed_official 2:cc8349878a7d 36
mbed_official 2:cc8349878a7d 37 1. Build the application and install it on your board as explained in the building instructions.
mbed_official 2:cc8349878a7d 38
mbed_official 2:cc8349878a7d 39 1. Open the BLE scanner on your phone.
mbed_official 2:cc8349878a7d 40
mbed_official 2:cc8349878a7d 41 1. Start a scan.
mbed_official 2:cc8349878a7d 42
mbed_official 2:cc8349878a7d 43 ![](img/start_scan.png)
mbed_official 2:cc8349878a7d 44
mbed_official 2:cc8349878a7d 45 **figure 1** How to start scan using nRF Master Control Panel 4.0.5
mbed_official 2:cc8349878a7d 46
mbed_official 2:cc8349878a7d 47 1. Find your device; it should be named *Therm*.
mbed_official 2:cc8349878a7d 48
mbed_official 2:cc8349878a7d 49 ![](img/scan_results.png)
mbed_official 2:cc8349878a7d 50
mbed_official 2:cc8349878a7d 51 **figure 2** Scan results using nRF Master Control Panel 4.0.5
mbed_official 2:cc8349878a7d 52
mbed_official 2:cc8349878a7d 53 1. Establish a connection with your device.
mbed_official 2:cc8349878a7d 54
mbed_official 2:cc8349878a7d 55 ![](img/connection.png)
mbed_official 2:cc8349878a7d 56
mbed_official 2:cc8349878a7d 57 **figure 3** How to establish a connection using Master Control Panel 4.0.5
mbed_official 2:cc8349878a7d 58
mbed_official 2:cc8349878a7d 59
mbed_official 2:cc8349878a7d 60 1. 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`.
mbed_official 2:cc8349878a7d 61
mbed_official 2:cc8349878a7d 62 ![](img/discovery.png)
mbed_official 2:cc8349878a7d 63
mbed_official 2:cc8349878a7d 64 **figure 4** Representation of the Thermometer service using Master Control Panel 4.0.5
mbed_official 2:cc8349878a7d 65
mbed_official 2:cc8349878a7d 66
mbed_official 2:cc8349878a7d 67 1. Register for the notifications sent by the *Temperature Measurement* characteristic.
mbed_official 2:cc8349878a7d 68
mbed_official 2:cc8349878a7d 69 ![](img/register_to_notifications.png)
mbed_official 2:cc8349878a7d 70
mbed_official 2:cc8349878a7d 71 **figure 5** How to register to notifications using Master Control Panel 4.0.5
mbed_official 2:cc8349878a7d 72
mbed_official 2:cc8349878a7d 73
mbed_official 2:cc8349878a7d 74 1. 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.
mbed_official 2:cc8349878a7d 75
mbed_official 2:cc8349878a7d 76 ![](img/notifications.png)
mbed_official 2:cc8349878a7d 77
mbed_official 2:cc8349878a7d 78 **figure 6** Notifications view using Master Control Panel 4.0.5
mbed_official 2:cc8349878a7d 79
mbed_official 2:cc8349878a7d 80