HardLabs

Rs485ch340usb

minamonra·MKiCadPro·2025/rs485ch340usb/rs485ch340usb.kicad_pcb

Rs485ch340usb PCB layout, top view — open source board by minamonra

About the Rs485ch340usb PCB

Rs485ch340usb is an open source PCB design by minamonra, published on GitHub. It is a 2-layer board measuring 5 × 8.2 mm, with 22 components from 16 distinct parts.

Other key parts include the CH340N and MAX485E. By type, the board carries 9 resistors, 4 capacitors, 3 diodes, 2 ICs, 2 connectors and 1 transistor.

From the project

MKiCadPro

Main components on the Rs485ch340usb

CH340NMAX485E

Rs485ch340usb bill of materials (BOM)

22 components, 16 distinct parts.

QtyPartRefs
1
CH340N
U1
1
MAX485E
U2
1
BC807
Q1
1
Conn_01x04
J1
1
USB_C_Plug_USB2.0
P1
1
Jumper_2_Bridged
JP1
1
LL4148
D1
2
LED
D2, D3
2
1u
C1, C3
1
0,1
C2
1
22u
C4
2
100k
R1, R2
3
20k
R3, R5, R6
1
4k7
R4
1
120
R7
2
1k2
R8, R9

Rs485ch340usb design files

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

Rs485ch340usb: common questions

How big is the Rs485ch340usb PCB?

The Rs485ch340usb measures 5 × 8.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rs485ch340usb?

22 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the Rs485ch340usb design files?

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

Can I use the Rs485ch340usb design in my own project?

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

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