[nosefuratyou]

I got some little zombie heads from a forum member. They change from red to green to blue to white. Is this done by varying the voltage or is it voodoo.

 

[J-Man]

I got some little zombie heads from a forum member. They change from red to green to blue to white. Is this done by varying the voltage or is it voodoo.

Single 2-lead color changing LED'S have a tiny microcontroller built in. The chip controls the color pattern.

 

[nosefuratyou]

Thanks J Man. But if the color is controlled by a chip the chip must be changing something like the voltage.

 

[J-Man]

Thanks J Man. But if the color is controlled by a chip the chip must be changing something like the voltage.

Well sort of. The LED is actually RGB and contains 3 LED'S in one package, (red, green, blue). The chip uses PWM to control the intensity of each color to produce, (what appears to the human eye), a wide array of colors.

 

[nosefuratyou]

Ahhhh now I get it Thanks again