Station 5 · IOSP 2026 · Leiden

NOIZETOYZ

A hardware synth wired straight into the AT Protocol. Press a key on-screen anywhere in the room — a real board across the room hears it, plays it, and lights it up on its own display.

signal live

Two patches, one substrate

Patch 1

Keys → Board

An on-screen piano key becomes a real, signed music.atproto.noizetoyz.synth.note record. A relay watches the network for it and re-broadcasts it live; a Wemos D1 mini running Mozzi turns it into a tone and draws the note name and a decaying waveform on its OLED — same room, same second.

Patch 2

Sensor → Feed

A BMP180 temperature/pressure sensor on the same board writes into station 2's existing sensor-reading collection over WiFi — no separate backend, same substrate, read back out through the live viewer above.

Signal path

Every jack below is a real network hop a note actually makes, keyboard to speaker.

browser keypress PDS createRecord signed record Jetstream firehose relay re-broadcast D1 mini Mozzi + OLED

Live out

Pulled straight from HappyView's read API, same feed the board itself is playing from.

last note
connecting…

Field notes

What it actually took to get real hardware talking to a real protocol, in order.