Music Synth Controller Design

Worked for 10 mins 15 sec

Thought for 3 sec

1/3 Set compact rounded-rectangle board size and 4-layer stackup

Accessed knowledge for the next task.

Thought for 1 sec

Read layout.

Thought for 7 sec — Considering layout size

Editing board size.

Thought for 2 sec

2/3 Place components by functional block without routing traces

Set compact rounded-rectangle board size and 4-layer stackup

Place components by functional block without routing traces

Review placement for overlaps and airwires-only expected DRC

Accessed knowledge for the next task.

Thought for 9 sec

Baking PCB layout data.

Running placement agent.

Thought for 3 sec

Placing components.

Thought for 2 mins 28 sec — Considering tool usage

Placing components.

Thought for 1 min 24 sec — Evaluating LED arrangement

Placing components.

Thought for 39 sec

Placing components.

Thought for 33 sec — Fixing overlaps in layout

Placing components.

Thought for 14 sec — Adjusting layout overlaps

Placing components.

Thought for 8 sec

Placing components.

Thought for 9 sec

Placing components.

Thought for 1 min 5 sec — Evaluating J2 rotation and positioning

Placing components.

Thought for 44 sec

Placing components.

Thought for 16 sec — Checking for overlaps

Placing components.

Thought for 17 sec — Adjusting component placements

Placing components.

Thought for 12 sec — Reviewing net grouping issue

Component placement complete.

Applying placement changes.

mixikid

it's okay for board to be double sided by the way

Thought for 11 sec

flux

Understood — I’ll allow bottom-side placement for small passives if it improves spacing, while keeping knobs, LEDs, buttons, USB-C, audio jack, MCU, codec, and PSRAM on top for usability and assembly clarity.

Worked for 3 mins 1 sec

flux

Done — the board is now a compact 100 × 75 mm rounded rectangle with a 4-layer stackup.

Components are arranged logically without routing traces: pots in a neat row, LEDs in order below them, two buttons below/near the LED row, USB-C on the left edge, audio jack on the right edge, MCU/PSRAM central, codec near audio, and power near USB. I allowed small resistors/capacitors on the bottom side while keeping all user-facing parts and major ICs on top; placement checks are clean, and the remaining review items are expected unrouted airwires only.

Run focused DRC

Route critical nets

Add mechanical features

Export placement report

R21 P2 - J2 TIP

U1 PD12 - U3 SO/SIO(1)

R22 P2 - J2 RING

R4 P2 - LED4 ANODE_A

U2 VCC - C15 P1

U4 FB - R17 P2

U1 PD13 - U3 SIO(3)

J1 CC1 - R9 P1

U1 PD11 - U3 SI/SIO(0)

J1 DN1 - J1 DN2

U4 SW - L1 P1

U1 VREF+ - U1 VBAT

U4 INH - C21 P1

J1 CC2 - R10 P1

U1 PE2 - U3 SIO(2)

Not Recommended for New Designs

LED4

GND

J1 SHIELD - J1 SHIELD

U2 SGND - U3 VSS

GND

J1 SHIELD - J2 SLEEVE

U4 PADGND - U4 SYNC

J1 SHIELD - J2 SLEEVE

U4 PADGND - U4 SYNC

Reviews

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Generic Resistor
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700.5k

Project Name

Description

Compact ARM Cortex STM32 music synth controller modeled after Daisy Seed, with external PSRAM, PCM3060 audio codec, three potentiometers, eight LEDs with resistors, two buttons, audio jack, rounded-rectangle PCB, mounting holes, and row-aligned controls.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor	Qty 1
Arrow	$11.79–$12.30
Digi-Key	$23.39–$25.00
HQonline	$6.39
LCSC	$27.94–$30.51
Mouser	$31.60
TME	$8.57
Verical	$10.11–$19.08

Controls

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