 Hello and welcome to this video explaining how to get started with the STM32 Nucleo Bluetooth Low Energy Expansion Board. This board is part of the STM32 Open Development Environment, a fast and affordable way to develop innovative devices and applications with ST components. Information on how to obtain the board can be found on www.st.com slash XNucleo under the reference XNucleo IDB05A1. The board is built around the SPB-TLE RF Bluetooth Low Energy Module based on the Blue NRG MS Bluetooth Smart 4.1 Network Processor. The SPB-TLE RF module integrates a ballon, a chip antenna, and is FCC and IC certified. The board is equipped with an Arduino Uno R3 connector, allowing it to be plugged into an STM32 Nucleo Development Board. First, connect the STM32 Nucleo Development Board to a PC using a mini USB cable. The board is automatically detected and seen as a disk drive. Visit ST.com and search for the keyword XNucleo IDB05A1. Click on the main part number link. Then, go to the Tools and Software section and click on the X-Cube link. Finally, go to the end of the page and click on the Download button in the Get Software section. Now, let's try a sample application that allows you to exchange data between the expansion board and a Bluetooth Low Energy-capable smartphone. The firmware to be installed is called Sensor Demo and can be found in the Applications folder of the project's directory, as shown here. Select the STM32 Nucleo Development Board you are using and drag and drop the binary file onto the Nucleo disk drive. On your smartphone or tablet, install the Blue NRG Application, available on Google Play and the Apple Store. Launch the application and connect to the board. Press the blue button on the STM32 Nucleo Development Board and the cube on the screen moves as the information is transferred over the Bluetooth link. A second screen shows simulated environmental data transferred from the expansion board via Bluetooth. The last screen displays the Receive Signal Strength Indication, or RSSI, measured at the antenna. The value decreases as we move the board further from the smartphone. A comprehensive set of documentation for the Bluetooth Low Energy Expansion Board, including a user manual, application notes, quick start guide, and data sheet is also available. Visit www.st.com.stm32ode.