Post on 08-Jul-2015
description
LED strip light workshop
WS 2801 based individually addressable LED strip -
http://www.sparkfun.com/products/10312
Or on eBay
Constant-current PWM
Three channels for RGBhttp://www.sparkfun.com/datasheets/Components/LED/WS2801.pdf
SMD 5050 RGB LEDs used on strips
Single “pixel”
Pulse-width modulation
Power and wiring
0.02 amps per channel
3 channels per pixel
32 pixels per meter
0.02 x 3 x 32 = 1.92
~2.0 amps per meter
Wiring guidelines
• Don’t power more than 1m from Arduino
• Keep power wires thick
• Inject power every 2 meters
Other sources
• Wires with pre-crimped terminals
http://www.pololu.com/catalog/category/71
• Crimp connector housings
http://www.pololu.com/catalog/category/70
• Power supply
https://www.adafruit.com/products/658
robertcook@gmail.com
Suite 213 in this building
Thanks