How To Interface A GC9A01 Round Display With Arduino & ESP32 – Voltlog #349

I’m gonna start this video with a question, do you agree that technological advancements as well as market demand for technology is making our hobby nicer and more accessible by providing us with parts and tools that are cheaper and easier to get now than ever before.

That’s how I feel when as a hobbyist I can get my hands on parts and tools that just a few years ago were out of reach due to them being top hard to source, too expensive and too technically challenging as well. Here is one example, this is a 1.3 inch, 240x240pixels round display and it even comes installed on this nice little breakout board with 0.1 inch header connections. You can get such a module for cheap on aliexpress and I’ll place some links to this in the description below so you can check it out.

And no, the interface to this display is not some complex and hard to implement LVDS interface, it’s a very simple SPI interface that you are probably already familiar with. So join me in this video to learn how to connect these types of display modules to your favorite development board and you can drive them to display pictures and animations.