---
title: "Arduino driven 5v and 12v Smartpower"
url: "https://maker.wiznet.io/WIZnet/projects/arduino-driven-5v-and-12v-smartpower/"
markdown_url: "https://maker.wiznet.io/WIZnet/projects/arduino-driven-5v-and-12v-smartpower/md"
type: "UCC: User Created Content"
author: "Jit"
author_url: "http://www.bluemind.org/arduino-driven-5v-12v-smartpower/"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "Jit"
original_url: "http://www.bluemind.org/arduino-driven-5v-12v-smartpower/"
published: "2023-02-13"
language: "en"
likes: 3
views: 363
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# Arduino driven 5v and 12v Smartpower

> I built a custom 1U rackable smart power which provides some remote services through HTTP

Original author: Jit (source: http://www.bluemind.org/arduino-driven-5v-12v-smartpower/)

## Documents and links

- [Code](https://oldmaker.wiznet.io/2019/03/28/arduino-driven-5v-and-12v-smartpower/) (code)

## Article

Smartpower :

He was updating my personal home “pico data center” in order to get more processing power (swarm cluster) and arrange all my ARM-based servers in a cabinet.

He wanted to use only the power supply for all my servers (mostly arm based) instead of multiple 5v power adapters. I also had some 12v needs for my router and my NAS running an Odroid N1 (more to come about it in a future article…)

So He built a custom 1U rackable smart power which provides some remote services through HTTP

Features :
The smart power actually has the following features :

- 5V 20A capacity

- 12V 8.5A capacity

- 6 USB connectors for 5V supply

- 2 Barrel connectors for 12V supply

- One temperature sensor

- Live display of power consumption and temperature

- Hardware switch to turn on or off any of the 8 power connectors

- “Cold” power-on sequence for all connectors (eg. turn on servers in the right order)

- Gather temperature and consumption history through REST API (json)

- Toggle any connector’s status through HTTP command

- Below is a photo of the smart power in action on my 19 inches cabinet:

![](https://maker.wiznet.io/upload/ckeditor5/67408789%5F1676305377%2Ejpg)

---

Source: https://maker.wiznet.io/WIZnet/projects/arduino-driven-5v-and-12v-smartpower/