Need help with building 256 color display using RGB LED

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drbizzarow

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help rgb led display

hi 2 all
im trying to make 256 colour display using rgb led but dont hav any idea where to start ne guide is very helpful to me thx in advance.
regards
 

Re: help rgb led display

Use PWM for each color component.
 

help rgb led display

how ?
 

help rgb led display

How many LED are you going to use? If its only one you can use 256-step digipot and a transistor for each color. using a microcontroller you can gradually set each led color by intensity.
 

very thanks for electronicus

regards,
Apple
 

Hi
I want to do the same work. but I want to use pwm for 128 led. I want to have a few pwm generator. so I think that use one module with holding voltage capability. can anybody help me to do it?

Regards
 

hi drbizzarow
its very easy if you use controller for it. many controllers have inbuilt PWM generator(e.g. pic24f).
 

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