HardLabs

Fuzzpedal

jasonli0616·fuzzpedal·kicad/fuzzpedal.kicad_pcb

Fuzzpedal PCB layout, top view — open source ESP32 board by jasonli0616

About the Fuzzpedal PCB

Fuzzpedal is an open source ESP32 PCB design by jasonli0616, published on GitHub. It is a 2-layer board measuring 75 × 75 mm, with 16 components from 13 distinct parts.

Its main chip is the ESP32-DEVKIT-V1, from the ESP32 family. Other key parts include the MCP4131-503E_SN and L7805. By type, the board carries 4 ICs, 4 resistors, 3 capacitors, 2 transistors and 2 connectors.

It belongs with the audio designs in this gallery.

From the project

A fuzz pedal controlled on your phone, using an ESP32.

A fuzz pedal controlled on your phone, using an ESP32.

See schematic and PCB design, or open project in KiCad (use ./kicad directory).

- Guitar pedal schematic from: https://www.instructables.com/DIY-Guitar-Pedal/

- ESP32 web server from: https://randomnerdtutorials.com/esp32-access-point-ap-web-server/

Main components on the Fuzzpedal

ESP32-DEVKIT-V1MCP4131-503E_SNL7805

Fuzzpedal bill of materials (BOM)

16 components, 13 distinct parts.

QtyPartRefs
1
ESP32-DEVKIT-V1
U1
2
MCP4131-503E_SN
U2, U3
1
L7805
U4
2
2N3904
Q1, Q2
1
Audio in
J1
1
Audio out
J2
1
PinHeader_1x01_P2.54mm_Vertical
+9V
1
0.1uF
C1
1
0.01uF
C2
1
22uF
C3
2
100K
R1, R3
1
10K
R2
1
5.1K
R4

Fuzzpedal design files

The KiCad project lives in the jasonli0616/fuzzpedal repository on GitHub; these links point at the commit this page was built from.

Fuzzpedal: common questions

What microcontroller does the Fuzzpedal use?

The Fuzzpedal is built around the ESP32-DEVKIT-V1, from the ESP32 family.

How big is the Fuzzpedal PCB?

The Fuzzpedal measures 75 × 75 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Fuzzpedal?

16 components, from 13 distinct parts. The full bill of materials is listed on this page.

Where can I download the Fuzzpedal design files?

From the jasonli0616/fuzzpedal repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Fuzzpedal design in my own project?

The repository has no license, so all rights stay with jasonli0616. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Fuzzpedal without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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