2 layers85.2 × 98.9 mm Zero stomp, the printed circuit board in 3D

Zero stomp

Programmable multi-effects guitar pedal

Size: 85.2 × 98.9 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 94
Nets: 95
Pads: 344
Tracks, vias: 451, 32
Pours: 2
Routed: Yes
KiCad: KiCad 8.0 (file 20240108)
Created: 11 Oct 2024
Updated: 29 Jul 2026

Overview

Zero stomp is an open-source printed circuit board by relic-se, from the relic-se/zero-stomp repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 85.2 × 98.9 mm with 94 parts on 95 nets, routed with 451 tracks and 32 vias.

It is built around the WM8960CGEFL/V, H11L1 and RP2040-ZERO. Its parts include 25 capacitors, 21 resistors, 8 connectors, 6 ICs and 4 diodes. It belongs with the audio and music boards and the RP2040 boards of this library.

Main components

README

README.md

Zero Stomp

Programmable multi-effects guitar pedal based on the RP2040/RP2350-Zero and WM8960 audio codec. Supports CircuitPython 9.2+.

More info coming soon!

Parts

Qty	Value	Footprint	References
10	TestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10
6	0u1	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C5, C6, C7, C8, C11, C17
5	10	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R6, R7, R8, R9, R10
4	0u1	Capacitor_THT:C_Rect_L4.0mm_W2.5mm_P2.50mm	C16, C19, C20, C21
4	1u	Capacitor_THT:CP_Radial_D5.0mm_P2.00mm	C1, C2, C22, C23
4	2k2	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R1, R11, R12, R19
3	100k	Potentiometer_THT:Potentiometer_Omeg_PC16BU_Vertical	RV1, RV2, RV3
2	100	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R20, R21
2	100u	Capacitor_THT:CP_Radial_D6.3mm_P2.50mm	C12, C13
2	10u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C9, C15
2	1M	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R17, R18
2	220	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R2, R14
2	2M2	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R15, R16
2	2k2	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3, R4
2	33n	Capacitor_THT:C_Rect_L4.0mm_W2.5mm_P2.50mm	C24, C25
2	47uH	Inductor_THT:L_Axial_L6.6mm_D2.7mm_P2.54mm_Vertical_Vishay_IM-2	L1, L2
2	4u7	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C10, C14
1	1	Zero-Stomp:Jumper_2_THT_P2.54mm	JP8
1	10	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R13
1	10n	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C3
1	1N4148	Diode_THT:D_DO-35_SOD27_P2.54mm_Vertical_AnodeUp	D2
1	1N5817	Diode_THT:D_DO-41_SOD81_P2.54mm_Vertical_AnodeUp	D1
1	1u	Capacitor_THT:C_Rect_L4.0mm_W2.5mm_P2.50mm	C4
1	2	Zero-Stomp:Jumper_2_THT_P2.54mm	JP7
1	24MHz	Oscillator:Oscillator_SMD_ECS_2520MV-xxx-xx-4Pin_2.5x2.0mm	X1
1	3	Zero-Stomp:Jumper_2_THT_P2.54mm	JP1
1	4	Zero-Stomp:Jumper_2_THT_P2.54mm	JP2
1	470	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical	R5
1	47u	Capacitor_THT:CP_Radial_D5.0mm_P2.00mm	C18
1	5	Zero-Stomp:Jumper_2_THT_P2.54mm	JP3
1	6	Zero-Stomp:Jumper_2_THT_P2.54mm	JP6
1	7	Zero-Stomp:Jumper_2_THT_P2.54mm	JP4
1	Battery	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	BT1
1	Expression	Connector_Audio:Jack_6.35mm_Neutrik_NMJ6HFD2_Horizontal	J4
1	H11L1	Package_DIP:DIP-6_W7.62mm	U2
1	HAMMOND-1590BB	Zero-Stomp:HAMMOND-1590BB	3D?
1	IN	LED_THT:LED_D3.0mm	D3
1	L78L05_TO92	Package_TO_SOT_THT:TO-92_Inline	U1
1	Left Input	Connector_Audio:Jack_6.35mm_Neutrik_NMJ6HFD2_Horizontal	J2
1	Left Output	Connector_Audio:Jack_6.35mm_Neutrik_NMJ6HFD2_Horizontal	J5
1	MIDI_IN	Connector_Audio:Jack_3.5mm_CUI_SJ1-3525N_Horizontal	J7
1	MIDI_OUT	Connector_Audio:Jack_3.5mm_CUI_SJ1-3525N_Horizontal	J8
1	OUT	LED_THT:LED_D3.0mm	D4
1	PWR_SEL	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	JP5
1	Power	Connector_BarrelJack:BarrelJack_Horizontal	J1
1	RP2040-Zero	RP2040-Zero:RP2040 Zero	U3
1	Right Input	Connector_Audio:Jack_6.35mm_Neutrik_NMJ6HFD2_Horizontal	J3
1	Right Output	Connector_Audio:Jack_6.35mm_Neutrik_NMJ6HFD2_Horizontal	J6
1	SSD1306-OLED-SPI	Zero-Stomp:SSD1306-OLED-SPI-0.96	U6
1	STOMP	Zero-Stomp:STOMP-3PDT-LED	S1
1	TL972	Package_DIP:DIP-8_W7.62mm	U5
1	WM8960CGEFL/V	Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm_ThermalVias	U4

The 91 most common of 94 parts.

Questions

How big is the Zero stomp PCB?

It measures 85.2 × 98.9 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Zero stomp use?

94 parts, built around the WM8960CGEFL/V, H11L1 and RP2040-ZERO. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Zero stomp KiCad files?

From the relic-se/zero-stomp repository on GitHub, at the commit this page was made from: the board is hardware/Zero-Stomp.kicad_pcb and its schematic hardware/Zero-Stomp.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Zero stomp design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Category and platform

Audio and music RP2040

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/relic-se-zero-stomp" title="Zero stomp in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/relic-se-zero-stomp.jpg" alt="Zero stomp" width="1200" height="900">

A picture that opens the board, for a README

[![Zero stomp](https://pcbkit.io/embed/boards/relic-se-zero-stomp.jpg?size=s)](https://pcbkit.io/boards/relic-se-zero-stomp)

Source

Repository: relic-se/zero-stomp
Board file: hardware/Zero-Stomp.kicad_pcb
Commit: d82677b
Licence: GPL-3.0

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