 Welcome to this explainer video on the SDM32 Nucleo Motor Control Expansion Board using Arm Embed Environment. This expansion board enables you to drive one high-power bipolar stepper motor as required by the most demanding motor control applications. 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. Now, connect the high-voltage stepper motor to the expansion board. Then, connect a voltage supply. In this case, we use a 12-volt supply. Then, you can connect the SDM32 Nucleo Board to a PC using a mini USB cable. And then, you are ready to power on! Now, connect to the Arm developer.embed.org website and log in with your credentials. Click on Hardware, then Components, and select Motor under the actuators category. Click on X-Nucleo IHM-03A1 high-power stepper motor driver and find the Hello World IHM-03A1 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 the download, or when pressing the black button on the Nucleo Board, the application will reset and start. This simple application shows how to run a stepper motor forward and backward, setting the torque regulation current, storing the current position as a reference, home position, and returning to it, and playing with the microsteps and the speed. And now, some details about the SDM32 Nucleo high-power stepper motor expansion board. It includes a fully integrated microstepping motor driver, the PowerStep01, and can actually be stacked up to three times to drive three stepper motors with a single SDM32 Nucleo board. At www.st.com-x-nucleo under the reference X-Nucleo IHM-03A1, 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.