Hi, and welcome to my playground. I'm Thomas and on this page I write about my hobbies; electronics, microcontrollers, programming, computer stuff and pretty much anything I find fascinating.

Newly published articles

Electronics lab: New bench power supply and a small shelf New

I really love the shelf rail system I have on the wall by the electronics lab; it distributes the load evenly over a large surface and it’s incredibly easy to move things around and try out different solutions. By squeezing some of the existing shelves a bit closer and moving the wire rolls; I was able to fit yet another shelf :)


Newly published projects

Simple lights/relays controller with 3 channels New

This was one of the first modules installed in the The Rack Box project, I used it to control some lights and the sub-woofer in my old apartment. It had three operator panels; in the living room, entryway and as part of the Rack Box status panel. Momentary switches were used to either show the status, or if held for more than one second, toggle the outputs.


A selection of popular projects

WiFi MQTT controlled relay for Home Assistant

A single relay controlled with WiFi MQTT from Home Assistant, using a WeMos D1 mini board.


Security keypad with programmable PIN

Keypad with programmable PIN code, two outputs (modes) and protection against repeated incorrect PINs. Uses an AVR ATtiny2313 microcontroller.


Mood light (RBG) with 100 mA outputs

Simple mood light controller with three PWM channels, max 100 mA output pr channel. Uses the AVR ATmega8 microcontroller.


Sound alarm control unit

Simple unit to control three sound signals; beep, siren and buzzer. Uses an AVR ATtiny2313 microcontroller.


Warning strobe light controller for car

Strobe light controller, using the AVR ATtiny2313 microcontroller. Meant for cars; with front, side and rear warning lights.

My profile image

Who am I?

I am Thomas, and Hebron, a programming and electronics enthusiast. I've been doing electronics projects for about 10 years, using the AVR micro controller. The last couple of years programming has really peaked my interest, especially C#, Python and PHP. I live in Norway with my girl friend and our two twin boys. You can read more about me on my profile page.