david
b445c272fb
add boot-time synth-diagnostic.service
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- synth-diagnostic.service: runs test-unit.py before pipeline services
- Type=oneshot, After=prometheus-exporter, Before=pipeline services
- Pipeline services: After=synth-diagnostic
- deploy: restart prometheus-exporter → start synth-diagnostic → restart pipeline
- install.sh: includes synth-diagnostic in SERVICES array
2026-06-24 02:48:40 -07:00
david
163ad4145b
add prometheus exporter + test suite
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- prometheus-exporter.py: stdlib-only HTTP metrics on :9090/metrics
- Exposes: ALSA status, hw_ptr rate, service health, mixer controls
- MIDI counters: notes_on, notes_off, errors
- test-unit.py: 10-test suite covering full MIDI→Pd→Audio pipeline
- test-tone.pd, test-midi-log.pd: minimal debug patches
- systemd service for exporter
- install.sh/deploy updated to include exporter
2026-06-24 02:22:05 -07:00
david
242c74236f
systemd services: midi-bridge, pd-synth-onboard, led-matrix-viz + install script
2026-06-24 01:36:36 -07:00
david
d239d58c44
onboard audio: JMISC HPH wiring, UCM fix, update scripts for git deploy
2026-06-23 21:25:51 -07:00
david
334e934dd7
stabilize systemd services: fix races, masked flooding, dependencies
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- pd-synth: add After=usb-gadget-audio.service midi-bridge.service (was Wants= only, race)
- usb-gadget-audio: add Restart=on-failure After=sysinit.target
- pd-synth-i2s: fix Wants=configure-usb-audio.service → usb-gadget-audio.service
- detect-usb-role.sh: hardcode gadget role (all 4 detection methods always fail, skip 2s sleep)
- arduino-router-serial: masked on board (flooded 2173× restarts looking for nonexistent /dev/ttyGS0)
2026-06-23 14:31:11 -07:00
david
dbd7c2cece
auto-detect MIDI device, drop ALSA sequencer dependency, MPK Mini simulator
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midi-bridge.py:
- Auto-detect rawmidi device (gadget f_midi > env override > fallback)
- Reconnect on ENODEV (device hotplug)
- No longer needs MIDI_BRIDGE_DEV env var in common cases
start-synth.sh:
- Remove all -alsamidi/-midiadddev flags (kernel lacks CONFIG_SND_SEQUENCER)
- MIDI handled entirely by midi-bridge.service → UDP → netreceive
- Host mode: same approach, no ALSA sequencer needed
mpk-mini-sim.pd:
- New MPK Mini Mk II simulator (25 keys, 8 pads, 8 CC knobs)
- Proper Pd #X obj format for all objects (bng, hsl, t, del, netsend, loadbang)
- UDP output to board:8081, matching midi-bridge format
system: enable usb-gadget-audio.service at boot, load dwc3 module at boot
2026-06-22 23:10:38 -07:00
david
8cd796e3dd
Initial commit: Arduino Uno Q USB Audio Synth project
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- USB gadget (UAC1 + MIDI) with boot persistence
- USB host mode with auto-detection
- Pure Data synth patch with ALSA + UDP netreceive MIDI input
- MIDI rawmidi-to-UDP bridge (midi-bridge.py)
- LED matrix visualization (led-matrix-viz.py via arduino-router RPC)
- MCU sketch for LED matrix control (Arduino_RouterBridge + ArduinoGraphics)
- Conftest/OPA Rego policy validation suite for .pd files
- gen_synth_pd.py: programmatic .pd file generator
- System services: midi-bridge, led-matrix-viz, pd-synth-auto, usb-role-detect
- Justfile with deploy, enable, diagnostic recipes
- Diagnostic script (diag.sh)
2026-06-22 22:46:36 -07:00
david