LED RGB 64-control individually

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.

Look at TLC5940, 16 channel (so 5 RGB LEDs)

Can do the color pallette with individual control of PWM per channel.
Another option is WS2803, an 18 channel driver with PWM control per channel.
Possible link to datasheet:
www.world-semi.com/en/Driver/Lighting_LED_driver.../WS2803/
and a forum discussion

I think you can find Arduino libraries for each.

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.

thanks for your help.
that the difference between the WS2803 and WS2801?
I can not find info on how to connect in cascade.

the WS2801 to sparkfun is at $ 0.75 dollars.WS2801 IC - COM-10444 - SparkFun Electronics
library as well as for the WS2803 and WS2801. GitHub - adafruit/Adafruit-WS2801-Library: Arduino library for controlling strips/pixels using WS2801 driver chips

that the difference between the WS2803 and WS2801?

The WS2801 is only 3 channels per chip (1 RGB LED per chip) and the WS2803 is 18 channels (6 RGB LED's per chip).

I can not find info on how to connect in cascade.

Connect arduino to SDI & CKI of first chip then just connect SDO & CKO of this chip to SDI & CKI of next chip and so on.

the library is prepared for working with cascading chip?, if so what would be the limit of the library?

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

Got a link to the AS1130 funkyguy?

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.

Grumpy_Mike:

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,...

True! I forgot about that.

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CF0QFjAA&url=http%3A%2F%2Fwww.ams.com%2Feng%2Fcontent%2Fdownload%2F185846%2F834724%2Ffile%2FAS1130_Datasheet_EN_v5.pdf&ei=18kqUImSEcjRyAGysIDQCw&usg=AFQjCNGwK34ZedRZMe7G635v3kynH8nl9Q&sig2=8EbrpqlBkFgKHhlLsM_O8g

Here is the datasheet, it'll download the sheet.

library as well as for the WS2803 and WS2801. GitHub - adafruit/Adafruit-WS2801-Library: Arduino library for controlling strips/pixels using WS2801 driver chips

funkyguy4000:

Grumpy_Mike:

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,...

True! I forgot about that.

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CF0QFjAA&url=http%3A%2F%2Fwww.ams.com%2Feng%2Fcontent%2Fdownload%2F185846%2F834724%2Ffile%2FAS1130_Datasheet_EN_v5.pdf&ei=18kqUImSEcjRyAGysIDQCw&usg=AFQjCNGwK34ZedRZMe7G635v3kynH8nl9Q&sig2=8EbrpqlBkFgKHhlLsM_O8g

Here is the datasheet, it'll download the sheet.

I'll have a look. looks promising

lol.

https://shop.austriamicrosystems.com/eng/Products/Lighting-Management/LED-Driver-ICs/AS1130

https://forum.sparkfun.com/viewtopic.php?f=5&t=31818
http://dl.kokosnuss.org/

lol.

I don't quite get what is funny...

funkyguy4000:

lol.

I don't quite get what is funny...

sorry, wrong talves be understood. i am from Argentina and my English is very bad.

I find playing with a diveritido these leds, chits.
thanks for the info. I'll see if I get one of these.

No worries, I was just confused, not offended :slight_smile:

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.

my idea of ??this project is to do that. sounds like fun

Well I hope you know that that is POV (Persistence of Vision).
Adafruit has a really nice spread on that.

bad luck, only accepts credit cards, I can only pay with paypal. and can not find somewhere else to sell it.