La Machine is a useless box project that runs Erlang code on an ESP32-C3 microcontroller via the AtomVM virtual machine. The system includes a partition layout with the VM, compiled Erlang code, and a sounds archive, and can be flashed and updated using standard ESP-IDF tools and rebar3 build commands. A Processing-based scenario editor allows users to customize choreographies that are embedded into the compiled code.
A workshop at Processing Community Day 2026 in New York on October 3rd will explore interactive experiences using MIDI controllers and Processing. The instructor will demonstrate projects including MIDI-controlled chess, interactive visuals, painting tools, fireworks, marquee animations, and Conway's Game of Life, with loaner MIDI devices available for participants.