Hackaday.io Hackaday.io
Projects
Discover Contests Courses Stack
More
Courses Tutorials Events Hackerspaces Hackaday.com Tindie Marketplace
Sign up Log in
Close
0%
0%

Isolated Full-Duplex RS-485 & Power Module

A breakout for the amazing ADM2484E, plus extras

cameron-laubischCameron Laubisch
Following Follow project
Liked Like project

Become a Hackaday.io member

Not a member? You should Sign up.

Already have an account? Log in.

Sign up with Github
Sign up with Twitter OR
Forgot your password?

Just one more thing

To make the experience fit your profile, pick a username and tell us what interests you.

Pick an awesome username
hackaday.io/
Your profile's URL: hackaday.io/username. Max 25 alphanumeric characters.
Pick a few interests
Projects that share your interests
People that share your interests

We found and based on your interests.

Choose more interests.

OK, I'm done! Skip
Join this project
Similar projects worth following
508 views
1 comments
5 followers
3 likes
  • Description
  • Details
  • Files 1
    • View all
  • Components 0
  • Logs 1
    • View all
  • Instructions 0
  • Discussion 1
View Gallery
508
1
5
3

Team (1)

  • cameron-laubischCameron Laubisch

Join this project's team
completed project
hardware
Modbus RS485 Isolation power RS-485 plc

This project is submitted for

  • Hackaday.com Tip Line

This project was created on 08/09/2017 and last updated 7 years ago.

Description

This thing was designed for people deploying custom modules in a PLC network.

It accepts 24VDC and Full Duplex RS-485 in, and provides an isolated TTL UART, 3.3V and 5V output.

Solder jumpers allow you to tie A-Y, B-Z, and RE-DE together, for switching between full- and half-duplex operation.

A LED lets you know the thing has juice.

Castellated vias so you can easily drop it down on your PCB

100mA PTC, MBRA140 reverse polarity diode, SMBJP6KE36A 300W TVS\ESD diode included

All pins labeled on bottom silk screen

Power outputs:
3.3V 100mA MAX
5V 100mA MAX
unregulated 12VDC - whatevers left over, I needed this for a different project.

Files

Module.pdf

SCH, let me know if I missed something or could improve

Adobe Portable Document Format - 48.34 kB - 08/09/2017 at 21:02

Preview

Project Logs
Collapse

  • initial commit

    Cameron Laubisch • 08/09/2017 at 21:03 • 0 comments

    initial commit

    now accepting critique of my design.. what can I add to make it even more 'bulletproof'? 

View project log

Enjoy this project?

Share

Discussions

Log In/Sign up to comment

Become a Hackaday.io Member

Create an account to leave a comment. Already have an account? Log In.

Sign up with Github
Sign up with Twitter OR
Cameron Laubisch wrote 08/09/2017 at 23:08 • point

Should 120Ω termination resistor be added but not populated? 

  Are you sure? yes | no

Similar Projects

DIY modular T&M chassis for programmable power DC sources and more
Project Owner Contributor

EEZ Bench Box 3

denisDenis

Main idea for this project is to create an easy adaptable screw shield for ESP8266 - 05 Wi-Fi module.
Project Owner Contributor

ESP8266 Wi-Fi - SCREW SHIELD

simonSimon

A tiny power module based on EA3036
Project Owner Contributor

Power module of EA3036

liangxuLiangXu

The 2015 Hackaday Prize
Digital potentiometer Flex Module.
Project Owner Contributor

Digipot Flex Module

chris-hamiltonChris Hamilton

Does this project spark your interest?

Become a member to follow this project and never miss any updates
Going up?

About Us Contact Hackaday.io Give Feedback Terms of Use Privacy Policy Hackaday API

© 2025 Hackaday

By using our website and services, you expressly agree to the placement of our performance, functionality, and advertising cookies. Learn More

Yes, delete it Cancel

Report project as inappropriate

You are about to report the project "Isolated Full-Duplex RS-485 & Power Module", please tell us the reason.

Send message

Your application has been submitted.

Remove Member

Are you sure you want to remove yourself as a member for this project?

Project owner will be notified upon removal.