tricolor-led

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?

Using an 8-bit PWM resolution for each LED, we can create 16,777,216 different combinations to adjust the intensity and create specific colors. Related Questions…

Suppose we have a common anode RGB LED connected in a circuit with a resistor of 220 ohms. The LED has a forward voltage drop of 2.2 volts for the red LED, 3.5 volts for the green LED, and 3.3 volts for the blue LED. The forward currents for the red, green, and blue LEDs are 15 mA, 20 mA, and 10 mA respectively. Calculate the total voltage drop across the resistor and the total current flowing through the circuit.

Total voltage drop across the resistor is 9 volts and the total current flowing through the circuit is 45 mA. Related Questions What is…