There are 3 coloured LEDs within the bulb, coloured Red, Green and Blue. Put a varying voltage through each, and you get a mixture of the colours. Pins 10, 8 and 7 are used as +5V outputs through resistors to the appropriate LED RGB input. The LED then. The RGB LED contains three LEDs encased in one shell: Red, Green and Blue (some contain an extra blue led - as blue LEDs generate less output intensity (candela) per mA). This. Main article: How to use tricolor LED module with Arduino The KY-016 is capable of producing wide range of different colors by mixing blue, green and red lights. This EVM contains three TPS62260 2. Each TPS62260. This document describes how to drive RGB LEDs, how to calculate a power dissipation, how to design an over temperature protection, how to use a software PWM modulation and why over voltage protection should be implemented for this kind of application.
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