#014 LED Array Async Effects

Demonstrates timer-interrupt triggering of addressable LED array effects using the FlexiTimer2 library.

Here’s a quick video of the demo:

Notes

When running an animation sequence on an LED array, we don’t want it upset by other processing on the Arduino. This sketch uses the FlexiTimer2 library to drive the effect sequence from a timer interrupt. That leaves the main loop() for doing other things.

See LEAP#007 Programmable LED Arrays for full description and circuit notes.

Construction

Designed with Fritzing: see LEDArrayDemos.fzz.

The Sketch

See AsyncLedStripEffects.ino.

Credits and References

• LEAP#007 Programmable LED Arrays
• FastLED library
• FlexiTimer2 library
• “IP68 12mm WS2811 as WS2801 led pixel module,IP68 waterproof DC5V full color RGB 50pcs a string christmas LED light Addressable” (aliexpress seller listing)
  • Purchased for US$17.94 (Aug-2014)
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