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USB-TO-UART-PCB-Design

Prajin2007·USB-TO-UART-PCB-Design

USB-TO-UART-PCB-Design layout, top view — open source board by Prajin2007

About the USB-TO-UART-PCB-Design

USB-TO-UART-PCB-Design is an open source PCB design by Prajin2007, published on GitHub. It is a 2-layer board measuring 34.6 × 15 mm, with 19 components from 10 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 compact USB Type-C to UART converter designed in KiCad, built around the CP2102N USB-to-UART bridge IC. Features ESD protection, TX/RX indicator LEDs, and a 5-pin header output.

A compact USB Type-C to UART converter designed in KiCad, built around the CP2102N USB-to-UART bridge IC. Features ESD protection, TX/RX indicator LEDs, and a 5-pin header output.

This PCB provides a reliable USB to UART serial interface using Silicon Labs CP2102N. It accepts USB Type-C input and exposes UART signals (TX, RX, RST, VBUS, GND) via a 5-pin header — useful for programming and debugging microcontrollers like STM32, ESP32, and Arduino.

USB-TO-UART-PCB-Design, from the project README
From the project README

Main components on the USB-TO-UART-PCB-Design

CP2102N-AXX-XQFN28

USB-TO-UART-PCB-Design bill of materials (BOM)

19 components, 10 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CP2102N-AXX-XQFN28
CP2102N-Axx-xQFN28
U1
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J1
1
CONN_01X05_PIN
Conn_01x05_Pin
J2
2
LED
D1, D2
3
LESD5D5.0CT1G
D3, D4, D5
2
100NF
100nF
C1, C2
2
C
C3, C4
2
5.1K
R1, R2
1
10K
R3
4
1K
R4, R5, R6, R7

USB-TO-UART-PCB-Design design files

The KiCad project lives in the Prajin2007/USB-TO-UART-PCB-Design repository on GitHub; these links point at the commit this page was built from.

USB-TO-UART-PCB-Design: common questions

How big is the USB-TO-UART-PCB-Design?

The USB-TO-UART-PCB-Design measures 34.6 × 15 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the USB-TO-UART-PCB-Design?

19 components, from 10 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the USB-TO-UART-PCB-Design design files?

From the Prajin2007/USB-TO-UART-PCB-Design repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the USB-TO-UART-PCB-Design design in my own project?

The repository has no license, so all rights stay with Prajin2007. Use it as a reference, and ask the author before reusing the design.

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