8 layers37 × 40.5 mm
Watch main
ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
206 partsApache-2.0
2 layers22.3 × 13.9 mm
Usb module
ben5049/Smart-WatchThis project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
- Size
- 22.3 × 13.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 3
- Nets
- 26
- Pads
- 28
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 7 (file 20221018)
- Created
- 11 Dec 2023
- Updated
- 17 Mar 2025
Overview
Usb module is an open-source printed circuit board by ben5049, from the ben5049/Smart-Watch repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 22.3 × 13.9 mm with 3 parts on 26 nets.
It is built around the TYPE-C-31-M-12. Its parts include 2 connectors and 1 IC.
Main components
1README
README.mdSmart-Watch
Introduction
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
Repository structure
- /Documentation - all the documents to do with the project, including hardware and software design, datasheets, reference manuals, images etc.
- /PCBs - KiCad projects for all the circuit boards used, libraries for all components, and old versions.
- /Firmware - code for STM32 and nRF53 microcontrollers, including drivers for most chips.
- /CAD - 3D models for components and assemblies, as well as 3D printing files.
- /Simulations - Spice simulations of certain (mainly analogue) circuits.
Parts
3| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 10-Pin_Pogo_Connector_Male | watch_footprints:10-Pin Pogo Connector Male | J101 |
| 1 | TYPE-C-31-M-12 | watch_footprints:TYPE-C-31-M-12 | J102 |
| 1 | Watch_Module_Outline_V2 | watch_footprints:Watch Module Outline V2 | U101 |
Questions
How big is the Usb module PCB?
It measures 22.3 × 13.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usb module use?
3 parts, built around the TYPE-C-31-M-12. 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 Usb module KiCad files?
From the ben5049/Smart-Watch repository on GitHub, at the commit this page was made from: the board is PCBs/usb_module/usb_module.kicad_pcb and its schematic PCBs/archived/rfid_module_v1/boost_converter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usb module design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
More from ben5049/Smart-Watch
10- 8 layers37 × 42 mm
Watch main
ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
157 partsApache-2.0 - 8 layers37 × 40.5 mm
Watch main
ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
146 partsApache-2.0 - 4 layers22.3 × 13.9 mm
Rfid module
ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
66 partsApache-2.0 - 2 layers100 × 80 mm
Watch test rig
ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
57 partsApache-2.0 - 4 layers56 × 56 mm
Watch test rig
ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
56 partsApache-2.0 - 2 layers22.5 × 14.5 mm
Lora module
ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
27 partsApache-2.0 - 2 layers56 × 56 mm
Watch test rig support
ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
26 partsApache-2.0 - 2 layers38 × 26.5 mm
Watch lower
ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
18 partsApache-2.0 - 2 layers46 × 26 mm
Module test rig
ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
16 partsApache-2.0
Similar boards
- 2 layers208.8 × 396.9 mm
Ferris
pierrechevalier83/ferris
A low profile split keyboard designed to satisfy one single use case elegantly
145 parts1.3k - 4 layers38 × 39 mm
CLN17-V1.5
creapunk/CLN-ClosedLoopNemaDriver
Compact closed-loop stepper motor driver designed for NEMA motors
103 parts1.1k - 2 layers42 × 67 mm
- 2 layers181 × 97 mm
OpenDeck r3.1.2
shanteacontrols/OpenDeck
A platform for building interactive control and sensing devices using MIDI and OSC built with Zephyr RTOS.
262 parts960Apache-2.0 - 4 layers86 × 34 mm
Bsl drv v1
jackw01/scanlight
A better light source for scanning color negative film
157 parts397CERN-OHL-W-2.0 - 6 layers55 × 95 mm
- 2 layers21.2 × 51.6 mm
- 6 layers84 × 98 mm
FujiNet-5200-Rev0
FujiNetWIFI/fujinet-hardware
Schematics and design files for FujiNet hardware
145 parts142