Close
0%
0%

Full byte power strip

None of that 3 outlet rubbish! Power strip with eight Wi-Fi controlled AC outlets.

ivan-stepaniukIvan Stepaniuk
Following
Liked Like project

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
Similar projects worth following
414 views
2 comments
5 followers
View Gallery
In search for smart power strips that have 6 or more outlets, I was coming empty handed. A lot of them have weird proprietary software or just not that many outlets. So I decided to build one myself.

Kopp makes this really nice 10x (dumb) power strip that is internally made of separate outlets as opposed to the more common one-piece molded plastic with metal bars running along as contacts.

I disconnected the individual live connections from each and routed them through an 8 relay board, sacrificing two of the outlets to make room for the relay board and controlling ESP32.

Banana for scale:

Kopp power strip cover.stl

Outlet cover STL file. Fits a Kopp POWERversal power strip.

Standard Tesselated Geometry - 220.10 kB - 12/19/2022 at 13:51

Download

  • 1 × Generic chinesium 8x Relay board One of thos blue ones you see everywhere, they are basically all the same
  • 1 × ESP32 dev kit An ESP32 board with sufficient IO for 8 pins that do not have funny contraints or boot conditions. Not all do.
  • 1 × Big hack-able power strip A gloriously big Kopp POWERversal® 10-way socket strip
  • 1 × 3D printed cover To cover the holes left when removing the 2 outlets to make space for the relay board.

  • Tasmota or not?

    Ivan Stepaniuk • 12/20/2022 at 16:27 • 0 comments

    Tasmota would probably be the right drop-in firmware for this. It already does what a power strip needs to do and much more.

    because this is part of a bigger project and I intend to add an external SPI port for analog and digital IO expansion, I have however decided to go with the following:

    • Platformio
    • Arduino STM32 framework (sans the crappy IDE)
    • The ArduinoOTA library for OTA firmware support
    • Standard MQTT client to talk to the world.

    The firmware is very simple and is available on github.

View project log

Enjoy this project?

Share

Discussions

stefan.schnitzer wrote 12/19/2022 at 06:43 • point

Nice project. What code are you running on the ESP32? Have you considered a fuse to prevent overcurrent through the relays? 

  Are you sure? yes | no

Ivan Stepaniuk wrote 12/19/2022 at 12:31 • point

Thanks! There is a 16A in-line fuse which will never blow since the breakers will trip way faster. The relays are 10A [china-]rated, a consumer product might need further protection but I am pretty sure I won't be plugging 2 kW loads in it ;)

Tasmota would be a good drop-in firmware for the ESP32. I am however using a custom firmware because I wanted some "special" features (this is part of a bigger project for a hydroponic garden). I will update the project soon with the github links!

  Are you sure? yes | no

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

Yes, delete it Cancel

Report project as inappropriate

You are about to report the project "Full byte power strip", 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.