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First commit of the repo. Contents beyond the v0.1 simulator and layout: - Full Pico 2 W firmware (firmware/app, drivers, engine port, host test). - BANK page and 404 mode A/B removed; learned pads play exactly what was learned. - 404/MiniFreak renamed to KIT/SYNTH throughout (jacks, code, sim, docs, layout labels; wiring rebuilt). - ROLL returns to page select after a re-roll; a freshly learned track turns on. - LCD contrast 66. - ROOT and SCALE pages: 21 scales, AUTO = the seed picks; global and sticky. Intended music change: the scale table grew from 8 to 21 and AUTO picks from all of them, so every seed's scale changed. Vectors regenerated with npm run vectors, plus new key-override cases. Flash record is now version 2. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
1.9 KiB
1.9 KiB
| 1 | part | value | holes | note |
|---|---|---|---|---|
| 2 | Pico 2W | 2 × 20-pin female header | A13–T13 and A20–T20 (pins 1–20 down the left, 40–21 down the right) | USB end flush with the top edge of the board, past strip A |
| 3 | U1 | 6N137 | U5–X5, U8–X8 | 6N137 in a DIP-8 socket. Notch toward strip U, pin 1 at hole U5. Pin 7 (enable) is tied to pin 8 by the U10–V10 link. |
| 4 | R1 | 220 Ω | V2 – Y2 | MIDI IN current limit. 3-hole span: stand it upright, or use a small ⅛ W part flat. If learning ever misses notes, use 150 Ω. |
| 5 | D1 | 1N4148 | V4 – W4 | Band (cathode) on V4, the opto LED anode side. Stands upright (1-hole span). |
| 6 | R2 | 1 kΩ | W10 – AB10 | Opto output pull-up to 3.3 V |
| 7 | C1 | 100 nF | U11 – X11 | 6N137 supply bypass, right beside the chip: U11 is its 5 V (pin 8) strip, X11 its GND (pin 5) strip. Required. Fit it after the beep test. |
| 8 | R4 | 10 Ω | X21 – X25 | MIDI OUT KIT, TX line (RC). Lies flat along strip X, across the cut at X23 (4-hole span, ¼ W fits). SEED hangs right above it. |
| 9 | R5 | 33 Ω ½ W | V19 – AB19 | MIDI OUT KIT, 3.3 V line (RA). ½ W: a mono plug in the jack shorts it to ground. |
| 10 | R6 | 10 Ω | U28 – Y28 | MIDI OUT SYNTH, TX line (RC) |
| 11 | R7 | 33 Ω ½ W | V30 – AB30 | MIDI OUT SYNTH, 3.3 V line (RA). ½ W, same reason as R5. |
| 12 | Link | wire | A34 – Z34 | 5 V (VBUS) to the 5 V strip |
| 13 | Link | wire | E32 – AB32 | 3V3 to the 3V3 strip |
| 14 | Link | wire | R33 – AA33 | GND to the GND strip |
| 15 | Link | wire | U13 – Z13 | opto VCC to 5 V |
| 16 | Link | wire | U10 – V10 | opto enable (pin 7) to VCC (pin 8): the 6N137 output only works with pin 7 high |
| 17 | Link | wire | X12 – AA12 | opto GND to GND |
| 18 | Link | wire | W9 – B9 | opto out to GP1 (MIDI RX), strip B |
| 19 | Link | wire | A15 – X15 | GP0 (TX KIT) to strip X (R4), straight down under the Pico between its headers |
| 20 | Link | wire | F14 – Y14 | GP4 (TX SYNTH) to strip Y (R6), straight down under the Pico between its headers |