Led strip workshop - amt 7 aug 2012
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Led strip workshop - amt 7 aug 2012

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Slides shown at LED Strip light workshop on 7 Aug 2012. Includes links to resources.

Slides shown at LED Strip light workshop on 7 Aug 2012. Includes links to resources.

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Transcript

  • 1. LED strip light workshop
  • 2. WS 2801 based individually addressable LED strip - http://www.sparkfun.com/products/10312 Or on eBay
  • 3. Constant-current PWM Three channels for RGBhttp://www.sparkfun.com/datasheets/Components/LED/WS2801.pdf
  • 4. SMD 5050 RGB LEDs used on strips
  • 5. Single “pixel”
  • 6. Pulse-width modulation
  • 7. Power and wiring0.02 amps per channel3 channels per pixel32 pixels per meter0.02 x 3 x 32 = 1.92~2.0 amps per meter
  • 8. Wiring guidelines• Don’t power more than 1m from Arduino• Keep power wires thick• Inject power every 2 meters
  • 9. 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
  • 10. Thanksrobertcook@gmail.comSuite 213 in this building