More Things To Do With Your Cheap Yellow Display

The Cheap Yellow Display (CYD) is an ESP32 development board that’s been making the rounds for a while now, thanks to its value and versatility. For around $10 USD, you get a nicely integrated package that’s perfect for a wide array of projects and applications. Toss a couple in on your next AliExpress order, and all you need to do is come up with an idea. [Craig Lindley] had two ideas, and maybe they will help get those gears turning in your head. Even if you don’t need a network-connected MP3 player or GPS information display, we bet browsing the source code would be useful.

There are plenty of opinions about listening to music, but this first project is particularly interesting for those who like to keep their collection locally. [Craig]’s code can read the MP3s stored on the SD card and present the user with a menu system for browsing them by artist or album.

Should you want to add more music to the collection, you can connect to the player over FTP and directly upload it to the SD card. But perhaps the real kicker is that the audio playback is done over Bluetooth, so you can rock out wirelessly. While we don’t necessarily have a problem with the sparse UI, it seems like with a little sprucing up (album art, graphical menus), this would be a fantastic framework for open-source personal audio players.

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