Category Archives: Projects

Portable HDMI monitor

I always felt the need of a portable monitor. First of all, because I did not had a flip-out screen on my previous camera. But it is also very handy when testing hardware, that requires a screen. But of course it can be used as a secondary monitor as well. The screen I bought for… Read More »

Speaker shelf

I have a small room, that does only accepts bookshelf size speakers, but I do not had a bookshelf in the right place. So I have built these shelves for the speakers. Building steps I had this piece of particle board laying around, left over after installing the kitchen sink. None of the sides was… Read More »

DIY USB Pedal device

Sometimes you just need a special USB device for your computer. As your feet are always free, we wanted have a pedal device. The pedal device can act as a keyboard or as a mouse depending on your needs. Just think for the ones experience disabilities. In our special case we wanted a device, that… Read More »

Building a Toy Lawn-mower out of wood

I have built this toy lawn-mower for my son (mostly) out of wood. It started with a plastic lawn mower. It broke, then I fixed it several times, but he always complained about how useless it is. So I promised him to build a better one. We also happen to have a junk ride-on toy,… Read More »

DIY WebCam arm-stand

I have got webcam some years ago, in a rather sad state with a missing foot. I already own some good webcams, I did not felt the need to fix this one, but as this is a very decent camera I still saved it a future project. I had some RaspberryPi point and shoot camera,… Read More »

Bluetooth Amplifier case

It seams, that it is very popular now to build portable bluetooth boomboxes. I already have made an active speaker set, but it does not provide bluetooth connection, and while it was designed to portable, it does not contains battery. So now I wanted to have a more portable one with bluetooth support. The TDA7492P… Read More »

DIY Bunk-Bed

[sg_popup id=”15″ event=”onload”][/sg_popup]Design I wanted to build a bunk-bed on my own, as I did not have found one that matched my need. (Actually I just wanted to have a simple, but robust structure.) At the time of the design, I was not completely sure at what height the upper bed should be, so I’ve… Read More »

DIY Egg Decorating Machine project

Goal I have seen some egg painting machines out there, but I found them too complicated to be a DIY project. These are some kind of CNC laves. In my design the pen (aka. tool) is in your hand, so the pen movement not controlled by the machine. The machine only performs the rotation task.… Read More »

Chess clock

Preface Lately I play some chess again, and I was realized, that it will become very boring, if we do not limit the time of the game. So a chess clock is required, but instead of buying one, it seams to be a great DIY project, and we will have a hackabe clock around the… Read More »

Loudspeaker enclosure

This document is about a speaker case I was built around a TDA2030A amplifier circuit and a 130mm car speaker set. Preface The story began some years ago, when I’ve bought a TDA2030A DIY Kit as a Fater-child project to build a power amplifier together. The amplifier was build, but it turned out that we… Read More »