This simulation demonstrates the working of an RGB LED driven by three independent square wave signals applied to its Red, Green, and Blue pins. Each channel (R, G, B) is connected through a current-limiting resistor (100 Ω) to a pulse generator. By switching the three channels at different times, the LED combines the colors to produce multiple shades. The waveforms show 0–4 V pulses at 1 kHz, where the duty cycle of each signal controls the brightness of the respective color. When mixed, they g