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24vModbusInterface

timshac·RS-485-FeatherWing·kicad/24vModbusInterface.kicad_pcb

24vModbusInterface PCB layout, top view — open source board by timshac
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About the 24vModbusInterface PCB

24vModbusInterface is an open source PCB design by timshac, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 75.5 × 22.9 mm, with 14 components from 12 distinct parts.

Other key parts include the ARGON, SP3485CN-L and Pololu_Reg16a. By type, the board carries 5 connectors, 3 ICs, 2 diodes, 2 capacitors and 2 resistors.

It belongs with the dev boards & breakouts and iot & wireless designs in this gallery.

From the project

RS-485 FeatherWing for Feather style microcontrollers. Instant Mobile App possible with Particle.io ecosystem

Can be used with any Feather style microcontroller

Firmware and simple mobile app available for Particle Argon or Boron microcontroller.

Connect your modbus client unit to your phone using the Particle.io mobile app.

Control your chiller or process heat from your phone.

RS-485 Featherwing (github, tindie) Particle Argon or Boron (purchase)

Clone this repository. Use Kicad to edit the circuit board and generate gerbers, or send the existing Gerbers to a fab. I use Seeed Studio. Use the BOM to order parts.

24vModbusInterface, from the project README
From the project README

Main components on the 24vModbusInterface

ARGONSP3485CN-LPololu_Reg16a

24vModbusInterface bill of materials (BOM)

14 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ARGON
U1
1
SP3485CN-L
SP3485
U2
1
Pololu_Reg16a
U3
2
ED500/2DS
Conn_01x02
J1, J2
2
Conn_01x02
J5, J6
1
Conn_01x03
J7
1
B0520WS-7-F
D_Schottky
D1
1
ORH-YG36A
LED
D2
1
0603B104K500NT
0.1uF
C1
1
CC0805KKX7R7BB106
10uF
C2
1
AC0603FR-07330RL
330
R1
1
RC0603FR-07220RL
220
R2

24vModbusInterface design files

The KiCad project lives in the timshac/RS-485-FeatherWing repository on GitHub; these links point at the commit this page was built from.

24vModbusInterface: common questions

How big is the 24vModbusInterface PCB?

The 24vModbusInterface measures 75.5 × 22.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 24vModbusInterface?

14 components, from 12 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 24vModbusInterface design files?

From the timshac/RS-485-FeatherWing repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the 24vModbusInterface design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which timshac chose for the repository.

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