Show Posts
Pages: [1]
1  Using Arduino / LEDs and Multiplexing / Re: How to drive dozens of LEDs from an UNO R3 for a Christmas project on: November 15, 2012, 01:16:00 pm
If the leds need to be either on or off, you could get a cheap shift register (or four).  Something like this:
https://www.sparkfun.com/products/733

Then use the shift out to control it:
http://www.arduino.cc/en/Tutorial/ShiftOut

You can daisy chain 4 of them to control your 32 leds
Pages: [1]