 Hello, and welcome to this video explaining how to get started with the STM32 Nucleo DC-DC LED Driver 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. Introduction on how to obtain the board can be found on www.st.com.xnucleo under the reference XNUCLEO LED61A1. The board is built around the LED6001, a DC-DC LED Driver supporting both boost and SCPIC power conversion topologies. It has a power supply connector, an LED connector, and an NTC connector. The board is configurable using jumper settings to enable different dimming options. The board is also equipped with an Arduino Uno R3 connector, allowing it to be plugged into an STM32 Nucleo Development Board. First, connect the LED light to the LED connector and the power supply to the expansion board. Please refer to the manual to set the correct jumper configuration for your LED light. Next, 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 LED61A1. 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 for LED brightness control. The firmware to be installed is called LED6001 demo and can be found in the examples folder of the projects 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. The user can interact with the expansion board in real time through a virtual comport using a terminal application configured at 9600 BOD. Once the firmware is downloaded, press the blue button to change the dimming value. The terminal displays the five different dimming modes available. PWM and analog dimming in steps or continuous and dimming driven by the integrated light sensor. Press the blue button for more than a second to switch from one mode to another. A comprehensive set of documentation for the DC-DC LED Driver Expansion Board including a user manual, application notes, quick start guide and datasheet is also available. www.st.com.stm32ode