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4 layers59.3 × 38 mmEsp32s3-devkit, the printed circuit board in 3D

Esp32s3-devkit

eshelton328/forge

Hardware design monorepo with software-grade CI/CD. KiCad PCB projects with automated ERC/DRC, multi-fab rule validation, schematic & BOM checks, and auto-generated board documentation.

Size
59.3 × 38 mm
Copper layers
4
Thickness
1.6 mm
Parts
37
Nets
59
Pads
216
Tracks, vias
378, 132
Pours
8
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
25 Apr 2026
Updated
4 Oct 2026

Overview

Esp32s3-devkit is an open-source printed circuit board by eshelton328, from the eshelton328/forge repository on GitHub. It is a 4-layer board of 59.3 × 38 mm with 37 parts on 59 nets, routed with 378 tracks and 132 vias.

It is built around the ESP32-S3-WROOM-1-N16, TPS63070RNMR and USBLC6-2SC6, with the AO3401A and MK-12C03-G015 among its other parts. Its parts include 12 capacitors, 11 resistors, 3 ICs, 3 diodes and 3 connectors. It belongs with the ESP32 and NXP (LPC, Kinetis, i.MX RT) boards of this library.

Main components

5

README

boards/alec-front/README.md

ALEC front PCB

24 × 10 mm front board with Omron B3U-1000P battery-check switch and Wuerth 150141M173100 common-anode RGB LED. Two copper layers, 1.6 mm thickness. J1 faces inward on B.Cu. These are actual routed boards fitted to the v4.2 enclosure, with physical tolerance/assembly verification still pending.

Component side

Connector side · Schematic PDF · Native schematic · Native PCB · BOM

See the harness contract and test report. Pullups, debounce capacitors, 100 Ω button series resistors and RGB resistors live on the main board. Do not connect this board directly to an unprotected ESP32 input in place of the defined main-board interface.

Board Images

Auto-generated on merge to main.

Schematic

Schematic

Download schematic PDF

PCB 3D Views

TopBottom
TopBottom

Download populated 3D model (GLB) — open in Blender or a glTF viewer.

Parts

37
QtyValueFootprintReferences
422µFCapacitor_SMD:C_0805_2012MetricC6, C7, C8, C9
30.1µFCapacitor_SMD:C_0402_1005MetricC4, C10, C12
310kΩResistor_SMD:R_0402_1005MetricR2, R7, R8
2100kΩResistor_SMD:R_0402_1005MetricR5, R11
210µFCapacitor_SMD:C_0402_1005MetricC3, C5
210µFCapacitor_SMD:C_0805_2012MetricC1, C2
21kΩResistor_SMD:R_0402_1005MetricR1, R6
25.1kΩResistor_SMD:R_0402_1005MetricR9, R10
2Conn_01x17_PinConnector_PinHeader_2.54mm:PinHeader_1x17_P2.54mm_VerticalJ1, J2
2LEDLED_SMD:LED_0603_1608MetricD1, D3
11.5µHTPS63070:IND_XFL4020-152MECL1
1150kΩResistor_SMD:R_0402_1005MetricR4
11µFCapacitor_SMD:C_0402_1005MetricC11
13.6vDiode_SMD:D_SOD-323D2
1470kΩResistor_SMD:R_0402_1005MetricR3
1AO3401APackage_TO_SOT_SMD:SOT-23Q1
1BOOTButton_Switch_SMD:SW_Push_1P1T_XKB_TS-1187ASW3
1ESP32-S3-WROOM-1-N16RF_Module:ESP32-S3-WROOM-1U2
1MK-12C03-G015Button_Switch_SMD:SW_SPDT_Shouhan_MSK12C02SW1
1RESETButton_Switch_SMD:SW_Push_1P1T_XKB_TS-1187ASW2
1TPS63070RNMRTPS63070:TPS63070U1
1USBLC6-2SC6Package_TO_SOT_SMD:SOT-23-6U3
1USB_C_Receptacle_USB2.0_16PConnector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12J3

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Questions

How big is the Esp32s3-devkit PCB?

It measures 59.3 × 38 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Esp32s3-devkit use?

37 parts, built around the ESP32-S3-WROOM-1-N16, TPS63070RNMR, USBLC6-2SC6 and AO3401A. 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 Esp32s3-devkit KiCad files?

From the eshelton328/forge repository on GitHub, at the commit this page was made from: the board is boards/esp32s3-devkit/esp32s3-devkit.kicad_pcb and its schematic boards/alec-controls/alec-controls.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Esp32s3-devkit design in my own project?

Its repository states no licence, so its author keeps all rights: ask eshelton328 before reusing the design.