USB TO UART
About the USB TO UART PCB
USB TO UART is an open source PCB design by MAHESH-THILAK-K, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 30.4 × 13.4 mm, with 16 components from 8 distinct parts.
Other key parts include the CP2102N-Axx-xQFN28. By type, the board carries 7 resistors, 4 capacitors, 2 connectors, 2 diodes and 1 IC.
It belongs with the usb & debug tools designs in this gallery.
From the project
A compact and efficient USB to UART converter built using the CP2102 IC, enabling reliable serial communication between your PC and embedded systems.
A compact and efficient USB to UART converter built using the CP2102 IC, enabling reliable serial communication between your PC and embedded systems.
Designed for firmware flashing, debugging, and real-time data exchange with platforms like ESP32, Arduino, and more.
⚡ CP2102 USB-to-UART bridge 🔌 USB Type-C interface 🔁 Stable & high-speed communication 📡 Dedicated TX / RX lines ⚙️ Dual voltage support (5V / 3.3V) 🔧 Plug & Play operation * 📏 Compact & clean PCB layout
Main components on the USB TO UART
USB TO UART bill of materials (BOM)
16 components, 8 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 | 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 design files
The KiCad project lives in the MAHESH-THILAK-K/ADDITIONAL-PROJECT 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 30.4 × 13.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the USB TO UART?
16 components, from 8 distinct parts. The full bill of materials is listed on this page.
Where can I download the USB TO UART design files?
From the MAHESH-THILAK-K/ADDITIONAL-PROJECT 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?
Yes, under the terms of its Apache-2.0 license, which MAHESH-THILAK-K chose for the repository.
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