HardLabs

Zero stomp

relic-se·zero-stomp·hardware/Zero-Stomp.kicad_pcb

Zero stomp PCB layout, top view — open source RP2040/RP2350 board by relic-se

About the Zero stomp PCB

Zero stomp is an open source RP2040/RP2350 PCB design by relic-se, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 85.2 × 98.9 mm, with 80 components from 50 distinct parts.

Its main chip is the RP2040-Zero, from the RP2040/RP2350 family. Other key parts include the L78L05_TO92, H11L1, WM8960CGEFL/V, TL972 and SSD1306-OLED-SPI. By type, the board carries 25 capacitors, 21 resistors, 8 connectors, 7 jumpers, 6 ICs and 4 diodes.

It belongs with the audio designs in this gallery.

From the project

Programmable multi-effects guitar pedal

Main components on the Zero stomp

L78L05_TO92H11L1RP2040-ZeroWM8960CGEFL/VTL972SSD1306-OLED-SPI

Zero stomp bill of materials (BOM)

80 components, 50 distinct parts.

QtyPartRefs
1
L78L05_TO92
U1
1
H11L1
U2
1
RP2040-Zero
U3
1
WM8960CGEFL/V
U4
1
TL972
U5
1
SSD1306-OLED-SPI
U6
1
24MHz
X1
1
Power
J1
1
Left Input
J2
1
Right Input
J3
1
Expression
J4
1
Left Output
J5
1
Right Output
J6
1
MIDI_IN
J7
1
MIDI_OUT
J8
1
HAMMOND-1590BB
3D?
1
Battery
BT1
1
3
JP1
1
4
JP2
1
5
JP3
Show 30 more
QtyPartRefs
1
7
JP4
1
6
JP6
1
2
JP7
1
1
JP8
3
100k
RV1, RV2, RV3
1
STOMP
S1
1
1N5817
D1
1
1N4148
D2
1
IN
D3
1
OUT
D4
2
47uH
L1, L2
4
1u
C1, C2, C22, C23
1
10n
C3
1
1u
C4
6
0u1
C5, C6, C7, C8, C11, C17
2
10u
C9, C15
2
4u7
C10, C14
2
100u
C12, C13
4
0u1
C16, C19, C20, C21
1
47u
C18
2
33n
C24, C25
4
2k2
R1, R11, R12, R19
2
220
R2, R14
2
2k2
R3, R4
1
470
R5
5
10
R6, R7, R8, R9, R10
1
10
R13
2
2M2
R15, R16
2
1M
R17, R18
2
100
R20, R21

Zero stomp design files

The KiCad project lives in the relic-se/zero-stomp repository on GitHub; these links point at the commit this page was built from.

Zero stomp: common questions

What microcontroller does the Zero stomp use?

The Zero stomp is built around the RP2040-Zero, from the RP2040/RP2350 family.

How big is the Zero stomp PCB?

The Zero stomp measures 85.2 × 98.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Zero stomp?

80 components, from 50 distinct parts. The full bill of materials is listed on this page.

Where can I download the Zero stomp design files?

From the relic-se/zero-stomp repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

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

Yes, under the terms of its GPL-3.0 license, which relic-se chose for the repository.

Can I test firmware for the Zero stomp without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

Similar boards