Description:

What is it?

The ESP32 Trinity is an open-source ESP32 board for controlling RGB Matrix panels. It comes fully assembled and ready to plug into your matrix.

It is designed to work with the ESP32-HUB75-MatrixPanel-I2S-DMA library.

NOTE: This board will only work with Matrix displays that the I2S library supports. Please check out the libraries' Github page for more information.

Why Did you Make it?

The RGB LED matrix panels are one of the coolest displays you can use with an Arduino, but there is quite a bit of wiring to connect them up and also they are a little awkward to power.

The panels are physically quite large and are only about $20/$25 from Aliexpress/eBay.

The Trinity makes wiring them really simple! The board just slots directly onto the input header pin and has screw terminals to connect the power cable that comes with most panels.

What Makes it Special?

Soldering the I2S matrix shield was a barrier to entry for people that I wanted to remove by making a fully assembled board. I was also able to add additional features such as much better support for powering the project via USB.

This really makes using the display as simple as possible and can be used to make some pretty awesome-looking projects! As it is fully assembled, you just plug it into your matrix, attach the power cables and you are ready to start making!

It also has all the available pins broken out so you can make use of them in your project. The add-on area is designed for the GY521 (MPU6050) accelerometer module so you can make some pretty interesting falling sand projects with it! But you can use these pins for other devices either.

Examples Sketches for Using These Displays

I have a lot of examples and sample projects available on the projects Github page for you to get started with.

The ESP32-HUB75-MatrixPanel-I2S-DMA library also comes with some pretty cool examples. I really recommend checking out PatternPlasma and AuroraDemo