USB-to-UART-converter

Ravi1108·USB-to-UART-converter·USB to UART converter's project file/USB to UART converter.kicad_pcb

USB-to-UART-converter PCB layout, top view — open source board by Ravi1108

About the USB-to-UART-converter PCB

USB-to-UART-converter is an open source PCB design by Ravi1108, published on GitHub. It is a 2-layer board measuring 31 × 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 compact USB-C to UART converter PCB built around the CP2102N USB-to-serial bridge IC, designed and modified in KiCad. This project converts USB-C signals into standard UART (serial) communication, making it useful for firmware flashing, embedded systems debugging, and serial co

A compact USB-C to UART converter PCB built around the CP2102N USB-to-serial bridge IC, designed and modified in KiCad. This project converts USB-C signals into standard UART (serial) communication, making it useful for firmware flashing, embedded systems debugging, and serial communication with microcontrollers.

The design is centered around the CP2102N, a widely used USB-to-UART bridge IC known for its stability, driver support across Windows/Linux/macOS, and low external component count.

USB-to-UART-converter, from the project README — From the project README

Main components on the USB-to-UART-converter

CP2102N-Axx-xQFN28

USB-to-UART-converter bill of materials (BOM)

19 components, 9 distinct parts.

Qty	Part	Footprint	Refs
1	CP2102N-Axx-xQFN28	QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm	U1
1	USB_C_Receptacle_USB2.0_16P	USB_C_Receptacle_HRO_TYPE-C-31-M-12	J1
1	Conn_01x05_Pin	PinHeader_1x05_P2.54mm_Horizontal	J2
2	LED	LED_0201_0603Metric	D1, D2
3	LESD5D5.0CT1G	TVS_LESD5D5.0CT1G	D3, D4, D5
4	100nF	C_0201_0603Metric	C1, C2, C3, C4
2	5.1K	R_0201_0603Metric	R1, R2
1	10K	R_0201_0603Metric	R3
4	1K	R_0201_0603Metric	R4, R5, R6, R7

USB-to-UART-converter design files

The KiCad project lives in the Ravi1108/USB-to-UART-converter repository on GitHub; these links point at the commit this page was built from.

USB-to-UART-converter: common questions

How big is the USB-to-UART-converter PCB?

The USB-to-UART-converter measures 31 × 15 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the USB-to-UART-converter?

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

Where can I download the USB-to-UART-converter design files?

From the Ravi1108/USB-to-UART-converter 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-converter design in my own project?

The repository has no license, so all rights stay with Ravi1108. Use it as a reference, and ask the author before reusing the design.

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