My son started in a school which is located to the center of the city. Usually my wife is taking and picking him up, but sometimes I need to do it as well. The first time I drove there with my car, it took me an hour to get there and another hour to get…
“Mesla” – an electric trike with two seats – Part 1
I’ve been thinking about building an electric trike for some time already, but I never pulled the trigger on buying the motor and other components as I couldn’t find a reasonable battery pack which didn’t cost an arm and a leg. Also, as the trike is meant for the kids, it would need to be…
Sauna thermometer – Living room module
The dual level sauna thermometer worked like a dream, so now was the time to make the slave module for my living room. The design was pretty straightforward as I was able to re-use a lot of the code, and the enclosure just needed a slightly different design so it was able to stand on…
Dual level sauna thermometer with wireless connectivity
I have always wondered what the actual temperature difference is between the head and feet level of my sauna. I’ve also been considering to alter the ventilation to make this difference lower, but how would I know if I actually improve it? The answer is a dual level thermometer! It is of course not enough…
F1 style go-kart steering wheel
For my next project which is an electric go-kart, I needed to come up with a way to mount all the electronic controls somehow. I decided to get a go-kart steering wheel and design a F1 inspired inlay that fits to the centre of it. Designing it was much more tricky than I thought as…
Modular wireless phone charger
Do you have a habit of placing your phone on front of your keyboard while you work? Are you annoyed that the facial recognition doesn’t recognise you due to the too shallow angle? Well, this is the version 2 fix for it! This design was originally made by me over a year ago, but now…
Mood-O-Meter
The Mood-o-meter has three operating modes: Hardware: How does it communicated with a PC? It doesn’t. The PC is simply sending serial signals to it which the Arduino interprets and changes the mood/status accordingly. The “PC controlled mode” signal is sent through a powershell script, which in turn has a simple winforms program as an UI….
Quick release breadboard base for Arduino Uno
I got tired of the jumpers always coming loose when packing away my projects, so I designed a magnetic breadboard base with a quick release for the Arduino. No need to fool around with screws, the board is held in place with small magnets, and the whole base can be attached to a subframe which…
Wireless phone charger
Do you have a habit of placing your phone on front of your keyboard while you work? Are you annoyed that the facial recognition doesn’t recognise you due to the too shallow angle? Well, this is the fix. The wireless charging module is taken from Ikea Livboj. Plug-n-play with a requirement of gluing three parts.
3D printer enclosure with automatic fire extinguisher
I decided to build an enclosure which has a separate dry space for feeding the filament, and has an automatic fire extinguisher which will fill the printer space with powder if it reaches 79 celsius (174 in freedom units). The filament is fed through the floor of the upper cabinet via PTFE tubes directly to…