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Raspberry pi rs485

franzs·raspberry_pi_rs485·KiCad/raspberry pi rs 485.kicad_pcb

Raspberry pi rs485 PCB layout, top view — open source Raspberry Pi board by franzs

About the Raspberry pi rs485 PCB

Raspberry pi rs485 is an open source Raspberry Pi PCB design by franzs, published on GitHub under the BSD-2-Clause license. It is a 2-layer board measuring 65 × 56 mm, with 12 components from 7 distinct parts.

Its main chip is the Raspberry_Pi_2_3, from the Raspberry Pi family. By type, the board carries 5 resistors, 4 connectors, 2 transistors and 1 jumper.

From the project

Raspberry Pi RS485 module

This Raspberry Pi RS485 module was heavily inspired by an article from the excellent german c't magazin:

Unter Strom - Stromverbrauch analysieren mit Raspi und Smart Meter

In addition to the schematic published a level shifter was added for the RXD input.

This shield was build around the MAX485 module from LC Electronics.

There is an AISLER project if you like to order a PCB.

Raspberry pi rs485 bill of materials (BOM)

12 components, 7 distinct parts.

QtyPartRefs
2
BS170
Q1, Q2
1
Raspberry_Pi_2_3
J1
1
Screw_Terminal_1x03
J2
2
CONN_01X04
P5, P6
1
Jumper
JP1
4
10k
R1, R2, R4, R5
1
120
R3

Raspberry pi rs485 design files

The KiCad project lives in the franzs/raspberry_pi_rs485 repository on GitHub; these links point at the commit this page was built from.

Raspberry pi rs485: common questions

What microcontroller does the Raspberry pi rs485 use?

The Raspberry pi rs485 is built around the Raspberry_Pi_2_3, from the Raspberry Pi family.

How big is the Raspberry pi rs485 PCB?

The Raspberry pi rs485 measures 65 × 56 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Raspberry pi rs485?

12 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the Raspberry pi rs485 design files?

From the franzs/raspberry_pi_rs485 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Raspberry pi rs485 design in my own project?

Yes, under the terms of its BSD-2-Clause license, which franzs chose for the repository.

Can I test firmware for the Raspberry pi rs485 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Raspberry Pi firmware against it before you order a PCB.

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