Category DIY

Building a wireless home sensor network – Part 1

Wireless home sensor network
As wireless controllers and sensors get cheaper and cheaper and more comfortable to use I decided to finally implement the idea I’ve had for a long time: setting up a wireless sensor network. Apart from being a fun project i…

Customizable cable duct

Whenever you do some electronics project there’s a good chance at least a few wires have to be routed around between boards, connectors and such. When you want to do it well organized it’s usually hard to find a proper…

OctoPrint Control Box

This box contains a Raspberry Pi running the fabulous OctoPrint / OctoPi, a 5 V power supply and an SSR. It allows you to remotely turn on and off your attached 3D printer, either by using the web interface, by…

CoreXY Laser Engraver Mk2

Update time! The CoreXY Laser Engraver has been updated with a motorized Z axis and numerous other enhancements… like more laser power. Har Har Har! When Jogi posted his make on Thingiverse he already added many improvements over my initial…

CoreXY Laser Engraver

Lasers are fun, especially high-power ones. Some time ago I purchased a 1 W blue laser and due to a recent 3D printer upgrade I had some spare linear motion components. The next steps are quite obvious, build a 2D…

Using Rotary Encoders

Many electronics projects need some kind of user input. For those where you need scrolling functionality, in a menu for example, or enter numerical values like a timeout, rotary encoders are very convenient. They are cheap, easy to use and…

Getting started with Atmel AVRs on Linux

In this small tutorial I will show you how to start programming Atmel microcontrollers under GNU/Linux, Debian in particular. It covers all steps starting with the software prerequisites, setting up a minimal circuit to actually flashing the microcontroller with the…

DIY PCB Exposure Unit

If you like experimenting with electronics sooner or later you’ll want to create an etched PCB with your own circuit. For testing purposes there’s of course the breadboard and simple circuits can be easily built on a stripboard but as…