Mixing colours

Of course, this only covers the primary and secondary colours. For everything else you need to be able to *dim* the individual LEDs. With a normal filament bulb you would just reduce the voltage, causing less current to flow. With LEDs this generally doesn’t work, so the usual solution is something called Pulse Width Modulation (PWM). With PWM, basically the LED is switched on and off, in a series of pulses. If the LED’s pulse lasts for 50% of a cycle then it gives out 50% as much light during that cycle as it would if it were on for the whole cycle. That 50% is the width of the pulse - reduce the width, and you reduce the amount of light emitted, increase the pulse width and you increase the amount of light emitted.

Now show me black

Only with light, not with pigment.

Oh yea? make brown !

what is vdd and is it possible to have one single led to produce multiple colors?

Wheres the earth?

Colorblind me:

Online, yellow is a lie. There are 0 yellow pixels, it just flashes green-red and your brain is tricked into perceiving yellow.

Why was it necessary to stress me out with the gauges?