Seed3-DevKit-Pedal

daisyaudio·Seed3-DevKit-Pedal·pcb/ES-Seed3-DevKit-Pedal-Rev4/ES-Seed3-DevKit-Pedal-Rev4.kicad_pcb

Seed3-DevKit-Pedal PCB layout, top view — open source board by daisyaudio

About the Seed3-DevKit-Pedal PCB

Seed3-DevKit-Pedal is an open source PCB design by daisyaudio, published on GitHub. It is a 2-layer board measuring 197 × 100 mm, with 142 components from 46 distinct parts.

Other key parts include the MCP6002-XSN, LP2985-5.0, OPA1652, MICRO_SD_CARD and H11L1. By type, the board carries 54 resistors, 47 capacitors, 10 connectors, 8 ICs, 5 switches and 5 inductors.

It belongs with the audio designs in this gallery, and the repository also holds 3 earlier revisions of it.

From the project

Pedal Dev Kit for the Daisy Seed3

- Updated rev text (on bottom side) to Rev3 - Marked R10, and R19 as populate, and R9 as DNP to swap the mid-rail voltage to ~+4V5 - Updated R43 (RED LED Resistor) to 1K (previously 2K) - Updated C8 and C28 to 100pF (previously 1nF) to fix tone-suck/low-pass filtering of guitars, etc. - Updated R75 and R12 to 33K (previously 24K) to improve pass-through level in the audio I/O circuits - Renamed toggle/button switches so that they're designators match the order of the layout. - Updated copyright to "(C) Daisy 2025" - Added silkscreen indications for each Daisy pin to the corresponding…

Main components on the Seed3-DevKit-Pedal

Seed3-DevKit-Pedal bill of materials (BOM)

142 components, 46 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP6002-XSN
MCP6002-xSN
U1
1
LP2985-5.0
U2
3
OPA1652
U3, U9, U10
1
MICRO_SD_CARD
U7
1
H11L1
U11
1
USBLC6-2SC6
U14
1
ELECTROSMITH_DAISY_SEED_REV4
Electrosmith_Daisy_Seed_Rev4
A1
3
DIN_MIDI_5P
J1, J10, J11
5
JACK_TRS_SWITCHING
J2, J3, J4, J5, J6
1
USB4110GFA
J7
1
Barrel_Jack_Switch
J8
2
M12 SPST Footswitch Assembly
FSW_1, FSW_2
1
TOGGLE_ON_OFF_ON_PIP2
SW1
2
TOGGLE_ON-ON_PIP3
SW2, SW3
2
PTH Mini Button
SW4, SW5
6
P-10K-B-R
VR1, VR2, VR3, VR4, VR5, VR6
1
LED
LED1
1
LED_RKBG
LED2
2
NSR1020MW2T3G
D5, D6
5
FERRITE_BEAD_0603
FB1, FB4, FB5, FB9, FB10
Show 26 more
QtyPartRefs
12
100NF
C1, C2, C4, C16, C17, C20, C22, C25 +4
10
10UF
10uF
C3, C6, C7, C10, C18, C19, C29, C35 +2
4
100PF
C5, C8, C28, C38
2
1NF
C9, C30
2
270PF
C11, C32
2
33NF
C12, C37
10
100UF
C13, C14, C21, C23, C24, C27, C36, C39 +2
2
10UF
C15, C26
2
10NF
C40, C46
1
1UF
C55
2
5K1
R1, R2
1
270R
R3
1
220R
R4
13
10K
R5, R10, R14, R17, R19, R22, R26, R64 +5
5
3R3
R6, R30, R48, R55, R57
3
1M
R7, R15, R18
7
100R
R8, R13, R16, R27, R46, R72, R76
2
15K
R11, R74
2
33K
R12, R75
2
3K3
R20, R58
2
4K7
R21, R71
3
2K
R25, R40, R44
4
10R
R28, R29, R59, R61
1
1K
R43
5
47K
R50, R51, R52, R53, R54
1
20K
R60

Seed3-DevKit-Pedal design files

The KiCad project lives in the daisyaudio/Seed3-DevKit-Pedal repository on GitHub; these links point at the commit this page was built from.

Seed3-DevKit-Pedal: common questions

How big is the Seed3-DevKit-Pedal PCB?

The Seed3-DevKit-Pedal measures 197 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Seed3-DevKit-Pedal?

142 components, from 46 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Seed3-DevKit-Pedal design files?

From the daisyaudio/Seed3-DevKit-Pedal repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Seed3-DevKit-Pedal design in my own project?

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

Earlier revisions in the repo: ES-Seed3-DevKit-Pedal-Rev3, ES-Seed3-DevKit-Pedal-Rev2, ES-Seed3-DevKit-Pedal-Rev1

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