HardLabs

Usb to uart

hammadurrehman2006·kicad_lab·06_usb_to_uart/usb_to_uart.kicad_pcb

Usb to uart PCB layout, top view — open source board by hammadurrehman2006

About the Usb to uart PCB

Usb to uart is an open source PCB design by hammadurrehman2006, published on GitHub. It is a 2-layer board measuring 31.7 × 15 mm, with 19 components from 9 distinct parts.

Other key parts include the CP2102N-Axx-xQFN28. By type, the board carries 7 resistors, 5 diodes, 4 capacitors, 2 connectors and 1 IC.

It belongs with the usb & debug tools designs in this gallery.

From the project

A collection of KiCad PCB designs developed during my Electronic Engineering degree (2024-28). Includes university projects, personal experiments, and custom components—featuring schematics, layouts, Gerber files, and documentation. Open-source hardware for education, collaboration, and real-world manufacturing.

This is Day 5 of my 10-Day PCB Design Challenge. After getting delayed due to heavy rain 🌧️ on 19th Aug, I’m back with my next project – a USB to UART Converter PCB designed using KiCad.

This project is special because it’s my first SMD-based PCB design 🎉 and also introduces vias and ESD protection for improved reliability.

The circuit is based on the CP2102 USB-to-UART Bridge Controller, which enables easy communication between a computer’s USB port and microcontrollers or other UART-based devices.

Usb to uart, from the project README
From the project README

Main components on the Usb to uart

CP2102N-Axx-xQFN28

Usb to uart bill of materials (BOM)

19 components, 9 distinct parts.

QtyPartRefs
1
CP2102N-Axx-xQFN28
U1
1
USB_C_Receptacle_USB2.0_16P
J1
1
Conn_01x05_Pin
J2
2
LED
D1, D2
3
LESD5D5.0CT1G
D3, D4, D5
4
100nf
C1, C2, C3, C4
2
5.1K
R1, R2
1
10K
R3
4
1k
R4, R5, R6, R7

Usb to uart design files

The KiCad project lives in the hammadurrehman2006/kicad_lab repository on GitHub; these links point at the commit this page was built from.

Usb to uart: common questions

How big is the Usb to uart PCB?

The Usb to uart measures 31.7 × 15 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Usb to uart?

19 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the Usb to uart design files?

From the hammadurrehman2006/kicad_lab repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Usb to uart design in my own project?

The repository has no license, so all rights stay with hammadurrehman2006. Use it as a reference, and ask the author before reusing the design.

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