As a motorcyclist, it’s important to be seen at all times. To help improve his visibility while on the road, Adnan Khan decided to outfit his helmet with a brake light and turn signals that activate along with the bike’s built-in indicators.

The video below shows how it was made, using an Arduino Uno onboard the motorcycle, plus a Nano embedded in the headgear. A pair of nRF24L01 transceivers enable the two Arduinos to communicate wirelessly, and three TIP122 transistors control the lighting directly for sufficient power output.

Although a neat concept, be sure that you don’t compromise your helmet’s structural integrity or legality if you try something similar! Code is available in the video’s description.