 Welcome to this explainer video on the SDM32 Nucleo Bluetooth Low Energy Expansion Board using the ARM Embed Environment. This expansion board enables you to connect to Bluetooth-enabled devices and open a communication channel supporting many standard profiles. During this video, we will show you how to connect to a smartphone and monitor a heart rate via a mobile application. We are going to explain how to get your application running in the ARM Embed Environment. The first half of the video will focus on the software setup and the second half will detail the hardware functionality available. You can connect the SDM32 Nucleo board to a PC using a mini USB cable. The board is automatically detected and seen as a disk drive. Now, connect to the ARM developer.embed.org website and log in with your credentials. Click on Hardware, then Components, and select Bluetooth under the Communication category. Click on XNucleo IDB05A1 Bluetooth Low Energy and find the BLE Heart Rate IDB0XA1 application example on the next page. Then import it into the online compiler. Open the main program and choose the desired target platform. Add a new one if needed. At this point, build the application and download it on the Nucleo board. After completing download or when pressing the black button on the Nucleo board, the application will reset and start. On your Android mobile, download from Google Play the SDM32 BLE Profiles application and install it. Once done, start the application. It detects the Nucleo board and exposes its supported profile. In this example, the heart rate profile. Click on this profile to get simulated values from the Nucleo board. And now some details about the SDM32 Nucleo Bluetooth Low Energy Expansion Board. It includes the SPB-TLE-RF Blue Energy MSRF module, a module that is FCC and IC certified. At www.st.com.x-nucleo under the reference XNUCLEO IDB05A1, you can find user manuals, quick start guides, bill of materials, and lots of other detailed documentation to help you on your way to building your application.