What is the principle behind the working of a tricolor LED?

Tricolor LED utilizes electroluminescence to convert electrical energy into light energy, producing different colors by controlling current through red, green, and blue regions via PWM, enabling versatile applications in displays and lighting.

If a common cathode RGB LED has a forward voltage drop of 2 volts for the red LED, 3 volts for the blue LED, and 2.5 volts for the green LED, and the forward current for each LED is 20 mA, what would be the total voltage and current required to power the RGB LED at full intensity with all three colors on

Suppose we have a common anode RGB LED connected to a microcontroller that can generate PWM signals with a resolution of 8 bits (0-255). If we want to create a specific color by adjusting the intensity of each LED, how many different combinations can we create using the 8-bit PWM signals for each LED?

Write a program to create different shades of red using a loop.

What is the principle behind the working of a tricolor LED?

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