The minimal indicator is a small microcontroller module and a 3-color LED. The controller drives the different colors of the LED and allows to indicate all necessary functions of your bike with just one LED. Allows to display 2 or 3 events at the same time easily. The small dimensions allows the implementation inside the head light or even in the handle bar. Cleans up your dashboard for a much cooler look.
You can indicate the following functions with one LED: