HardLabs

RS485

Lee34667·PCB_Kicad_Projects·RS485 Fire panel interface/RS485 Fire panel interface.kicad_pcb

RS485 PCB layout, top view — open source board by Lee34667

About the RS485 PCB

RS485 is an open source PCB design by Lee34667, published on GitHub. It is a 2-layer board measuring 74.7 × 40.1 mm, with 26 components from 12 distinct parts.

Other key parts include the 4N35. By type, the board carries 10 resistors, 7 diodes, 4 transistors, 2 connectors, 2 capacitors and 1 IC.

From the project

Creating a L9110 module using PCB techniques.

Contains some the PCB projects I have done using KiCad. Most of this boards have been used in the industries and research work.

Main components on the RS485

4N35

RS485 bill of materials (BOM)

26 components, 12 distinct parts.

QtyPartRefs
1
4N35
U1
3
BC547
Q1, Q2, Q3
1
BC557
Q4
1
DE9_Plug
J1
1
DB25_Receptacle
J2
5
D_Filled
D1, D3, D5, D6, D7
1
Rx
D2
1
Tx
D4
2
22uF 16V
C1, C2
1
220R
R1
1
1k
R2
8
2k2
R3, R4, R5, R6, R7, R8, R9, R10

RS485 design files

The KiCad project lives in the Lee34667/PCB_Kicad_Projects repository on GitHub; these links point at the commit this page was built from.

RS485: common questions

How big is the RS485 PCB?

The RS485 measures 74.7 × 40.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RS485?

26 components, from 12 distinct parts. The full bill of materials is listed on this page.

Where can I download the RS485 design files?

From the Lee34667/PCB_Kicad_Projects repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the RS485 design in my own project?

The repository has no license, so all rights stay with Lee34667. Use it as a reference, and ask the author before reusing the design.

More boards in PCB_Kicad_Projects