How to use single color led to display RPMs with Arduino and Simhub (Custom Protocol)

In this video I&show you how to create rpm lights with arduino and some single color LEDs. Simhub doesn&support them, so we&use custom protocol to control them. It&easy, just follow my steps. wiring: sketch: the power supply output must be 5v the resistors I use is: 1k ohm for transistors 1k ohm for green leds because they make to many light 220 ohm for red and blue leds. copy the SHcustomprotocol.h file in ProgramsSimHub_AddonsArduinoDisplayClientV2 #simhubcustomprotocol