Recently, I’ve been working on a new firmware for the RadioMusic by MusicThing Modular. I wanted to get some drums into my case using as little HP as possible, so came up with this. The drum patterns are stored as text files on the SD card. Currently it only supports one pattern, going to be working on multiple patterns next. Some of the samples were recorded from a vintage adding machine I found. You can use your own samples, but they have to be compiled into the hex executable file. You can find the source code on my GitHub https://github.com/cutlasses/RadioDrum if you want to check it out.