Active Cooler

The best resource for tech and electronics projects, tutorials and reviews

Latest Posts

I Built an AliExpress Homelab, Is It Surprisingly Good or Total E-Waste?

Michael Klements - January 5, 2026 1

Today I’m building a complete 10-inch homelab using only components bought from AliExpress. No name brands, no local retailers, no trusted vendors, just the...

Pi 5 NAS With Custom Carbon Fibre Panels, Made on the Makera Z1!

Michael Klements - December 11, 2025 1

Today, I'm going to be building a low-power SSD NAS that is built around the Raspberry Pi 5. This Pi 5 NAS offers flexible...

I Built a Pi 5 AI Chatbot That Talks, Blinks, and Looks Around!

Michael Klements - November 17, 2025 27

There’s something fun about bringing tech to life, literally. Today’s project is all about that, building an AI chatbot that blinks, looks around, and...

Adjusting Cabinet Hinges

Michael Klements - May 23, 2016 10

If your cabinets have adjustable concealed hinges, you may need to adjust them every now and again to keep the doors in line and...

Mini Raspberry Pi Server With Built In UPS

Michael Klements - June 30, 2021 95

Today we're going to be building a mini Raspberry Pi server with a built-in UPS and OLED stats display. A Raspberry Pi makes a...

I Built A 4-Bay Raspberry Pi 5 Based NAS

Michael Klements - May 15, 2024 42

Last year, I built a Pi-based NAS as cheaply as possible using a Raspberry Pi Zero 2W. It was a great project to learn...