This guide is designed to get you started using the Expressive Pixels application with the Matrix Portal. Below are some resources for taking your Expressive Pixels project further.
This guide covered the basics of creating, saving and playing an animation using Expressive Pixels. If you want to learn more about the Expressive Pixels app's advanced authoring tools - Microsoft Research hosts a website with video tutorials for Expressive Pixels. Topics covered range from using layers to importing GIFS to use as animations.
A general FAQ for ExpressivePixels is hosted here.
For technical support, create an issue on the Expressive Pixels GitHub repository.
The firmware which runs on the Matrix Portal is open source. Check out the ExpressivePixels GitHub repository for this project to view the source code and learn more.