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LED color

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raresh_r

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Hi, is there possible to change a LED color ? i want to make the indicators from the dashboard of the car to change color in different speed(blue slow, red fast speed)
 
You can get multi-color LEDs. There are RGB LEDs. They have 3 LEDs inside. You vary the amount of current in each LED to get the right mix of color you want.
 
Back before blue LEDs were even developed, I had students who used to routinely change the color of red LEDs to orange by using them without current-limiting resistors for a prolonged period.

Dean
 
raresh_r said:
white and red exists ?
Just use an RGB LED which can produce a whole rainbow of colour, including white.
 
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