2 layers68.6 × 25.4 mm
UINIO MCU ESP32C3
uinika/UINIO-MCU-ESP32C3
the Evaluation Board base on ESP32-C3 with RISC-V.
50 parts8
2 layers33.7 × 20.3 mm
UINIO USB UART CH343
uinika/UINIO-USB-UART-CH34311the USB-to-UART tool base on CP2102 & CH343P.
- Size
- 33.7 × 20.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 23
- Pads
- 84
- Tracks, vias
- 146, 57
- Pours
- 75
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 30 Sep 2022
- Updated
- 8 Jan 2025
Overview
UINIO USB UART CH343 is an open-source printed circuit board by uinika, from the uinika/UINIO-USB-UART-CH343 repository on GitHub. It is a 2-layer board of 33.7 × 20.3 mm with 25 parts on 23 nets, routed with 146 tracks and 57 vias.
It is built around the CH343P and LESD5D5.0CT1G. Its parts include 6 diodes, 5 resistors, 4 connectors, 3 capacitors and 1 IC. It belongs with the interfaces and adapters boards of this library.
Main components
2
CH343P
TQFN-16-EP(3x3)-40℃~+85℃ 3.3V、5V 3mA 6Mbps 90uA USB 2.0 USB to UART TQFN-16-EP(3x3) USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
LESD5D5.0CT1G
SOD-523-55℃~+150℃ 100W 12pF 16V 1uA 5V 7A 7V Bidirectional ESD IEC 61000-4-2 SOD-523 ESD and Surge Protection (TVS/ESD) ROHSGOODWORKUncategorised
README
README.mdUINIO-USB-UART-CH343 串口调试器
UINIO-USB-UART-CH343 是一款基于苏州沁恒 CH343P 芯片的 USB 转 UART 的开源串口调试器，该款芯片采用了小尺寸的 QFN16 封装，可以稳定支持 921600 波特率的 UART 串口通信。
设计概要
- 板载
RXD和TXD的信号传输状态指示灯； - USB 信号线上并入了两枚 TVS 瞬态电压抑制二极管；
- 引出了包括串口硬件流控信号线在内的全部片上资源；
- 为
3.3V输出提供了自恢复保险丝和二极管组成的防反接保护电路； - 预留有
2mm的固定螺丝孔，便于安装至 3D 打印外壳，或者搭建成套的产品原型； - 板载的
VIN引脚用于接入外部的参考电压，从而调整当前 UART 信号输出的电平幅值。
参考技术文档
UinIO.com 电子技术实验室 为 UINIO-USB-UART-CH343 开源项目提供了如下一系列技术参考资料：
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Hole-2mm | Uinio:Hole-2mm | HOLE**, HOLE**, HOLE**, HOLE** |
| 3 | 2K | Resistor_SMD:R_0603_1608Metric | R1, R5, R6 |
| 2 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C5, C6 |
| 2 | 5.1K | Resistor_SMD:R_0603_1608Metric | R9, R10 |
| 2 | BLUE LED | LED_SMD:LED_0603_1608Metric | D5, D6 |
| 2 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4, J7 |
| 2 | LESD5D5.0CT1G | Diode_SMD:D_SOD-523 | D3, D4 |
| 1 | 1N4007 | Diode_SMD:Nexperia_CFP3_SOD-123W | D2 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 60V 1A | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | CH343P | Uinio:TQFN-16_L3.0-W3.0-P0.50-BL-EP1.7 | U2 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J5 |
| 1 | LED Red | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | USB_Type_C_16Pin | Uinio:USB-C-SMD_TYPEC-304J-BCP16 | USB1 |
Questions
How big is the UINIO USB UART CH343 PCB?
It measures 33.7 × 20.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the UINIO USB UART CH343 use?
25 parts, built around the CH343P and LESD5D5.0CT1G. 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 UINIO USB UART CH343 KiCad files?
From the uinika/UINIO-USB-UART-CH343 repository on GitHub, at the commit this page was made from: the board is UINIO-USB-UART-CH343.kicad_pcb and its schematic UINIO-USB-UART-CH343.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the UINIO USB UART CH343 design in my own project?
Its repository states no licence, so its author keeps all rights: ask uinika before reusing the design.
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