4 layers45 × 41 mm
Osw
Open-Smartwatch/open-smartwatch-gps
Hardware design files for the GPS version of the open-smartwatch
70 parts243GPL-3.0
2 layers
CH340 USBC
obviousfancy/CH340_USBC- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 7
- Nets
- 35
- Pads
- 52
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 13 May 2026
- Updated
- 23 May 2026
Overview
CH340 USBC is an open-source printed circuit board by obviousfancy, from the obviousfancy/CH340_USBC repository on GitHub, published under the MIT licence. It is a 2-layer board with 7 parts on 35 nets.
It is built around the CH340E. Its parts include 2 capacitors, 2 diodes, 2 connectors and 1 IC.
Main components
1README
README.md[Nombre del Proyecto]
📝 Descripción
[Escribe aquí una descripción breve pero técnica. Ejemplo: "Sistema embebido basado en STM32 para el procesamiento de señales digitales acústicas utilizando algoritmos de filtrado FIR."]
🚀 Características Principales
- Procesamiento en tiempo real: [Ej: Implementación de FFT].
- Diseño de Hardware: PCB de 2 capas optimizada para bajo ruido.
- Interfaz: Visualización de datos en pantalla OLED mediante protocolo I2C.
🛠️ Tecnologías Utilizadas
- Lenguajes: C / C++ / VHDL.
- Hardware: STM32H7, ESP32, Sensores [Modelo].
- Software/Herramientas: KiCad, STM32CubeIDE, MATLAB.
📁 Estructura del Repositorio
/src: Firmware desarrollado en C./hardware: Esquema electrónico y diseño de PCB./assets: Capturas de pantalla y diagramas de bloques./docs: Documentacion relacionada respecto al proyecto general.
📸 Galería
| Prototipo Físico | Diseño PCB |
|---|---|
 |  |
⚙️ Instalación y Uso
- Clonar el repositorio:
git clone [url-del-repo] - Abrir el proyecto en [Nombre del IDE].
- Compilar y cargar al microcontrolador.
🛠️ Guía de Trabajo Rápida
| Tipo de Commit | Descripción |
|---|---|
| feat | Nuevas funciones/archivos |
| hw | Cambios en PCB o esquemáticos |
| docs | Documentación y reportes |
| fix | Corrección de errores |
[!TIP] Consulta la Guía de Estilo completa aquí antes de realizar cambios.
Desarrollado como parte de la formación en [Tu Carrera/Universidad].
Parts
7| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | C | Capacitor_SMD:C_0201_0603Metric | C1 |
| 1 | CH340E | Package_SO:MSOP-10_3x3mm_P0.5mm | U1 |
| 1 | C_Polarized_Small | Capacitor_Tantalum_SMD:CP_EIA-1608-10_AVX-L | C2 |
| 1 | D_Schottky | Diode_SMD:D_0201_0603Metric | D2 |
| 1 | LED | LED_SMD:LED_0201_0603Metric | D1 |
| 1 | Qwiic_RA | PCM_SparkFun-Connector:JST_1x04_P1.0mm_Horizontal_SMD | J1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_Palconn_UTC16-G | J2 |
Questions
What parts does the CH340 USBC use?
7 parts, built around the CH340E. 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 CH340 USBC KiCad files?
From the obviousfancy/CH340_USBC repository on GitHub, at the commit this page was made from: the board is hardware/CH340USBC/CH340USBC.kicad_pcb and its schematic hardware/CH340USBC/CH340USBC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CH340 USBC design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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