[Iron Jungle] just finished building this gear indicator for his motorcycle. It uses a red 7-segment display to show the rider what gear is currently engaged. This hack is pretty common and makes ...

[Vassilis Papanikolaou] just finished building a gear indicator for a motorcycle. This quite a simple implementation compared to some of the other vehicle information displays we’ve taken a look at.

Normal human eye can not see IR light. But if you want to see right lamp glowing, take a video while paking (in back gear), you will see right lamp glowing even more than left (visible light lamp).