Hi, I need to individually control 64 RGB LED, intensity, on / off and range or palette the colors
I have sought information and I met this 16-channel Multiplexer 74HC4067.
74hc4067 Multiplexer, I allow only the ignition internal / off the LEDs? Will I be able to just change the color scheme?, or will I need also the ULN2803, to change the color palette?
coneciones my diagram here, do me a favor and put two hechele a mirada.solo 74hc4067 Multiplexer for the case
The procedure is repeated.
I would also suggest the WS2803, on eBay you can pick them up for a little over a pound ($1.50) each in small quantities and even less for larger 25+ numbers. They work well and daisy chain together without problem.
64 RGB LEDs is like 192 LEDs, so you need a lot to drive that. It would take 12 TLC5940 chips, that is a lot for a beginner to get working.
A cheaper alternative might be to use shift registers, look at this:- http://www.elcojacobs.com/shiftpwm/
You will need three resistors for each RGB LED so that is 192 resistors as well.
If you are experienced enough, you could work with the AS1130 from Austrian Microsystems. You will need two of them and they operate on I2C.
They can PWM 132 leds each. Whabam
They charlyplex and so they can not be used with RGB LEDs unless each LED has a separate anode and cathode, which is not very common and unknown outside surface mount devices.
Considering they use I2C, It shouldn't be too difficult and seeing as how there is already code for it..should be simple.
I just haven't been able to get it on a breadboard yet with its surface-mount only packages.