> For the complete documentation index, see [llms.txt](https://longer-vision-robot.gitbook.io/arduino-full-stack/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://longer-vision-robot.gitbook.io/arduino-full-stack/01_getting_started_with_arduino/02_lvr_arduino_extension_board.md).

# 1.2 LVR Arduino Exntesion Board

Students who take our Arduino course on-site will be given a **FREE** proprietary Arduino exntension board designed by [Longer Vision Robot](http://www.longervisionrobot.com). Students are welcome to puchase the kit from our website at <http://www.longervisionrobot.com/en-us/products/arduino-uno-r3-extension>.

The proprietary Arduino exntension board designed by [Longer Vision Robot](http://www.longervisionrobot.com) can be plugged into the Arduino UNO R3 directly, which looks like:

![LVR Arduino Extension Board - 3D Model](/files/-LEM-AokasUNE28jaPBb)

![LVR Arduino Extension Board - Product](/files/-LEM-Aor5--Px8vHcpBs)