HardLabs

Sh03

penmoid·sh03-pcb

Sh03 PCB layout, top view — open source ESP32 board by penmoid

About the Sh03 PCB

Sh03 is an open source ESP32 PCB design by penmoid, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 100 × 56 mm, with 14 components from 10 distinct parts.

Its main chip is the ESP32-S3-DevKitC-1, from the ESP32 family. By type, the board carries 4 resistors, 3 connectors, 3 capacitors and 1 IC.

From the project

Replacement controller PCB for the Sovol SH03 filament dryer. KiCad sources and Rev-A fabrication files.

SH03 controller is an ESP32-S3-DevKitC-1 carrier board for the Sovol SH03 filament dryer. The board is a two-layer, 100 × 56 mm design. It carries nine back-side SMD references: J1, J2, R1-R4, and C1-C3. J3 and the DevKitC-1 headers are through-hole parts fitted by the builder.

This repository contains the KiCad source, custom footprints, schematic exports, fabrication files, renders, validation reports, and regeneration scripts. The current design is Rev-A.

Sh03, from the project README
From the project README

Main components on the Sh03

ESP32-S3-DevKitC-1

Sh03 bill of materials (BOM)

14 components, 10 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-DevKitC-1
U1
1
C2886792
OEM_J1_thermal_air
J1
1
C2886793
OEM_J2_vents
J2
1
AUX_display_umbilical
J3
3
FIDUCIAL
FID1, FID2, FID3
1
C444831
470uF/10V polymer
C1
1
C49678
100nF
C2
1
C15850
10uF
C3
2
C17633
33k
R1, R2
2
C17414
10k
R3, R4

Sh03 design files

The KiCad project lives in the penmoid/sh03-pcb repository on GitHub; these links point at the commit this page was built from.

Sh03: common questions

What microcontroller does the Sh03 use?

The Sh03 is built around the ESP32-S3-DevKitC-1, from the ESP32 family.

How big is the Sh03 PCB?

The Sh03 measures 100 × 56 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Sh03?

14 components, from 10 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 Sh03 design files?

From the penmoid/sh03-pcb 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 Sh03 design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which penmoid chose for the repository.

Can I test firmware for the Sh03 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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