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USB-UART-CH340C-converter board hardware design

SolderedElectronics·USB-UART-CH340C-converter-board-hardware-design·CAD/V1.1.1/USB-UART_converter.kicad_pcb

USB-UART-CH340C-converter board hardware design layout, top view — open source board by SolderedElectronics
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About the USB-UART-CH340C-converter board hardware design

USB-UART-CH340C-converter board hardware design is an open source PCB design by SolderedElectronics, published on GitHub under the TAPR-OHL-1.0 license. It is a 2-layer board measuring 38 × 22 mm, with 23 components from 18 distinct parts.

Other key parts include the CH340C and SE5218. By type, the board carries 5 resistors, 4 relays, 4 capacitors, 3 diodes, 2 ICs and 1 fuse.

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

From the project

Hardware design, BOM, gerbers and 3D files for USB-UART-CH340C-converter-board designed by Soldered Electronics.

This small USBUART adapter converts USB communication into UART (serial) communication, and everything you might need is already on this small board. In addition to the classic UART pins that are arranged in the standard layout: DTR, RXD, TXD, VCC, CTS, GND, other pins available of the CH340 chip are also available on header: RS232, RI, DCD, DSR, RST and CTS. Indication LEDs show activity on RXT and TXD lines, and a 500mA fuse protects this programmer, the USB port of the computer that is connected, and other devices connected to it from damage.

USB-UART-CH340C-converter board hardware design, from the project README
From the project README

Main components on the USB-UART-CH340C-converter board hardware design

CH340CSE5218

USB-UART-CH340C-converter board hardware design bill of materials (BOM)

23 components, 18 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CH340C
U1
1
SE5218
U2
1
1206FUSE-500mA
F1
2
HOLE_3.2mm
H1, H2
1
SMD-JUMPER-CONNECTED_TRACE_SLODERMASK
JP1
1
U262-161N-4BVC11
K1
1
HEADER_MALE_6X1
K2
1
FTDI_HEADER
K3
1
HEADER_MALE_4X1
K4
1
SS-3292S-L1
S1
1
white
D1
1
blue
D2
1
purple
D3
2
0.1uF
C1, C2
2
2.2uF
C3, C4
2
5.1k
R1, R2
2
10k
R3, R4
1
2k2
R5

USB-UART-CH340C-converter board hardware design design files

The KiCad project lives in the SolderedElectronics/USB-UART-CH340C-converter-board-hardware-design repository on GitHub; these links point at the commit this page was built from.

USB-UART-CH340C-converter board hardware design: common questions

How big is the USB-UART-CH340C-converter board hardware design?

The USB-UART-CH340C-converter board hardware design measures 38 × 22 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the USB-UART-CH340C-converter board hardware design?

23 components, from 18 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-UART-CH340C-converter board hardware design design files?

From the SolderedElectronics/USB-UART-CH340C-converter-board-hardware-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-UART-CH340C-converter board hardware design design in my own project?

Yes, under the terms of its TAPR-OHL-1.0 license, which SolderedElectronics chose for the repository.

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