Arnov Sharma has created a drum machine synth from scratch using a Raspberry Pi Pico 2 as the main driver along with a custom PCB.

In contrast, air drums can be altogether more compact, if lacking the same impact as the real thing. In any case, students [Ang], [Devin] and [Kaiyuan] decided to build a set of air drums ...

Using the latest Raspberry Pi Pico 2, he's created a custom drum machine synth ... it out in action over at YouTube and explore the build guide in greater detail over at Hackster.