Need help with building 256 color display using RGB LED

[drbizzarow]

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

 

[electronicus]

Re: help rgb led display

go here:www.trektech.de

 

[drbizzarow]

help rgb led display

i viste that site

go here:www.trektech.de .....

but i need 256 colour shades.

 

[particlecity]

Re: help rgb led display

Use PWM for each color component.

 

[drbizzarow]

help rgb led display

how ?

 

[rikie_rizza]

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.

 

[apple_apple]

very thanks for electronicus

regards,
Apple

 

[tictac]

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

 

[ppdr123]

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