Review on Encoding Decoding Interface Raspberry Pi by Kyle Earley

Note that the drivers for this are not included in the Raspberry Pi OS (formerly known as Raspbian), so be prepared to install them yourself. A guide is available on the Waveshare website as a PDF manual. And basically you need to clone the github repo and then use the provided script which uses dkms to build the driver (loads the kernel headers). And this process doesn't always go smoothly. I couldn't get it to work with the latest Buster image, so I decided to install an older stretched image, which eventually worked. That headache aside, it seems like it matters a lot since the speakers are on. I'm using it as a front doorbell on an old Raspberry Pi Zero to play a customized sound through the speakers when someone rings the bell.