Fork me on GitHub

Project Notes

#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:

AsyncLedStripEffects - using a timer interrupt to run effects on an LED array

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.

Construction

The Breadboard

The Schematic

The Build

Credits and References

About LEAP#14 LED ArrayTimingArduino
Project Source on GitHub Project Gallery Return to the LEAP Catalog

This page is a web-friendly rendering of my project notes shared in the LEAP GitHub repository.

LEAP is just my personal collection of projects. Two main themes have emerged in recent years, sometimes combined:

  • electronics - usually involving an Arduino or other microprocessor in one way or another. Some are full-blown projects, while many are trivial breadboard experiments, intended to learn and explore something interesting
  • scale modelling - I caught the bug after deciding to build a Harrier during covid to demonstrate an electronic jet engine simulation. Let the fun begin..
To be honest, I haven't quite figured out if these two interests belong in the same GitHub repo or not. But for now - they are all here!

Projects are often inspired by things found wild on the net, or ideas from the many great electronics and scale modelling podcasts and YouTube channels. Feel free to borrow liberally, and if you spot any issues do let me know (or send a PR!). See the individual projects for credits where due.