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2 layers40.2 × 19 mmOMGS3 Carrier R1, the printed circuit board in 3D

Assorted files for my ESP32-S3 development boards

Size
40.2 × 19 mm
Copper layers
2
Thickness
1 mm
Parts
45
Nets
28
Pads
96
Tracks, vias
134, 80
Pours
3
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
25 Jan 2022
Updated
17 Oct 2025

Overview

OMGS3 Carrier R1 is an open-source printed circuit board by UnexpectedMaker, from the UnexpectedMaker/esp32s3 repository on GitHub. It is a 2-layer board of 40.2 × 19 mm with 45 parts on 28 nets, routed with 134 tracks and 80 vias.

Its parts include 4 diodes, 3 connectors, 2 capacitors, 2 resistors and 2 ICs. It belongs with the microcontroller boards boards of this library.

README

README.md

Unexpected Maker - ESP32-S3 Boards

Assorted files for my ESP32-S3 development boards

logo

logo

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You can find out more about my ESP32-S3 boards at https://esp32s3.com

Contents

In this repo you'll find the following items:

3D Models

3D STEP files for each of the OMGS3, NanoS3, TinyS3, ProS3 and FeatherS3 boards

KiCAD 6/7/8 Symbols

KiCAD 6 symbol files for each of the boards that you can use when integrating one of them into one of your PCB designs. NanoS3 symbol file is for KiCAD 7 or later OMGS3 symbol file is for KiCAD 8 or later

KiCAD 6/7 Footprints

KiCAD 6 footprint files for each of the boards including both SMD and TH versions for the ProS3 NanoS3 footprint file is for KiCAD 7 or later OMGS3 footprint file is for KiCAD 8 or later

Schematics

PDF Schematics for each of the OMGS3, NanoS3, TinyS3, ProS3 and FeatherS3 boards

Pin Reference Cards

Hires pinout reference cards for each of the OMGS3, NanoS3, TinyS3, ProS3 and FeatherS3 boards

Support Unexpected Maker

I love designing, making, and releasing projects and products that empower others to learn and build amazing things! I do it because I believe it’s important to share knowledge and give back to the community as many have done before me. It helps us all learn and grow.

Please consider supporting me by buying some of my products from:

https://unexpectedmaker.com/shop

Or by buying one of my products on tindie or Lectronz:

https://www.tindie.com/stores/seonr/ https://lectronz.com/stores/unexpectedmaker

Or by becoming a Patron:

https://www.patreon.com/unexpectedmaker

Unexpected Maker

http://youtube.com/c/unexpectedmaker

http://twitter.com/unexpectedmaker

https://discord.gg/xAHpApP

https://www.facebook.com/unexpectedmaker/

Parts

45
QtyValueFootprintReferences
3D_TVSUnexpected Maker:X1-DFN1006-2D2, D3, D4
210uFCapacitor_SMD:C_0603_1608MetricC1, C2
25.1KResistor_SMD:R_0402_1005MetricR1, R2
2Conn_01x12_SocketConnector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_VerticalJ2, J3
2KMR2Unexpected Maker:BTN_KMR2_4.6X2.8SW1, SW2
2LOGOLOGOG***, G***
1Conn_01x02_PinUnexpected Maker:JST-PICOBLADEJ1
1DIODE-SCHOTTKYWIDEUnexpected Maker:SOD-523-MSK4010D1
1G***kibuzzard-66A3379Ekibuzzard-66A3379E
1G***kibuzzard-66BFFA07kibuzzard-66BFFA07
1G***kibuzzard-66C531C2kibuzzard-66C531C2
1G***kibuzzard-66BFFA19kibuzzard-66BFFA19
1G***kibuzzard-66BFF9F9kibuzzard-66BFF9F9
1G***kibuzzard-66BFFB58kibuzzard-66BFFB58
1G***kibuzzard-66BFFB21kibuzzard-66BFFB21
1G***kibuzzard-66BFF9FEkibuzzard-66BFF9FE
1G***kibuzzard-66BFFB52kibuzzard-66BFFB52
1G***kibuzzard-66C53217kibuzzard-66C53217
1G***kibuzzard-66BFFA21kibuzzard-66BFFA21
1G***kibuzzard-66BFF9E6kibuzzard-66BFF9E6
1G***kibuzzard-66BFFA15kibuzzard-66BFFA15
1G***kibuzzard-66A337D7kibuzzard-66A337D7
1G***kibuzzard-66BFFA03kibuzzard-66BFFA03
1G***kibuzzard-66BFF9DFkibuzzard-66BFF9DF
1G***kibuzzard-66BFFB12kibuzzard-66BFFB12
1G***kibuzzard-66BFF9CCkibuzzard-66BFF9CC
1G***kibuzzard-66BFF9F3kibuzzard-66BFF9F3
1G***kibuzzard-66BFFAE0kibuzzard-66BFFAE0
1G***kibuzzard-66BFFB54kibuzzard-66BFFB54
1G***kibuzzard-66BFFB47kibuzzard-66BFFB47
1G***kibuzzard-66BFFB4Fkibuzzard-66BFFB4F
1G***kibuzzard-66BFFB0Ckibuzzard-66BFFB0C
1G***kibuzzard-66BFFA1Dkibuzzard-66BFFA1D
1G***kibuzzard-66BFFAF9kibuzzard-66BFFAF9
1G***kibuzzard-66BFFB5Dkibuzzard-66BFFB5D
1G***kibuzzard-66BFFB4Ckibuzzard-66BFFB4C
1USB_C16PINUnexpected Maker:USB-C-16P-LESSPASTE-2-Fixed-Sqr-FrontU2
1~Unexpected Maker:OMGS3U1

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Questions

How big is the OMGS3 Carrier R1 PCB?

It measures 40.2 × 19 mm and has 2 copper layers, 1 mm thick.

What parts does the OMGS3 Carrier R1 use?

45 parts. 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 OMGS3 Carrier R1 KiCad files?

From the UnexpectedMaker/esp32s3 repository on GitHub, at the commit this page was made from: the board is kicad/OMGS3 Carrier/OMGS3_Carrier_R1.kicad_pcb and its schematic kicad/NanoS3 Carrier/NanoS3_Carrier.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the OMGS3 Carrier R1 design in my own project?

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