power

Using the Shelly Plus Plug S to measure homelab power

I’m using a Shelly Plus Plug S smart plug to measure the power usage of my homelab. I added it as a device in Home Assistant — and the power readings began! Kind of… Within a few days; I noticed …

Underground conduits to garage and shed

Two years ago we dug and laid three conduits from the house to the garage, and from the garage to the shed. Primarily to get more power to the garage — and any power to the shed. I used the …

Arch Linux laptop power — suspend, battery, and charging

I recently got a new laptop, (well — not new, but new to me), a HP ZBook 15 G5. After installing Arch Linux and the i3 wm I spend some time setting up power management, suspend on idle, and figuring …

Reducing our energy consumption

With the electricity prices we’ve seen in Europe lately — I wanted to see if we could reduce our energy consumption. I’m specifically looking at “wasted” energy, meaning usage we can reduce without …

Homelab power upgrades — new MBP, PDU, and USB power

I’ve already written about my PDU suddenly dying — and in that post I explained that I was going to do some changes to the homelab power layout. It’s time to do those changes 🙂

The homelab PDU died!

My homelab PDU suddenly died! It’s dead, D-E-D, dead! There are few things worse than a server rack suddenly going completely silent… The PDU has had an error since the power outage last summer — F11 …

Surprice UPS and shutdown test

A few days ago; sitting outside — drinking coffee and minding my own business, I received an email from my UPS: Utility power not available. 2021/06/01 18:38:27 My homelab had lost both power sources …

My new home office

In our new house there is an 20 m² basement, it consists of two rooms — both 10 m². I have turned the inner room into my new home office/server room, with my electronics lab and homelab.

Homelab (2019)

I’ve got a tiny computer lab at home; a 29U rack with servers, UPS, ATS, PDU, 10 Gbit networking, OPNsense, and all the cool stuff.

The homelab adventure begins!

I've had a server rack for many years, but never really gone all in. Well, that changed...

4-channel electronic switch and voltage regulator

Electronic switch for LED lights, 4 channels, 9 to 24 volts in, 5 volts out. Uses an AVR ATtiny2313 microcontroller.

Power supply and fuse monitoring module, AVR

Simple monitoring module for the essentials in the rack box project; power supplies, fuses and communication. Uses an AVR AT90S2313 microcontroller.