Projects page
contact: Jan Derogee

Welcome to my projects website, choose one of the items below if you want to know more about them. If you have any questions, suggestions or require extra information about one of the projects below just send me an email.

Kind regards, Jan Derogee 

My videos

click here to go to my YouTube channel

I have made some videos for some of my projects. Some to explain the functionality is a simple manor, others just for fun. And regarding fun, I like to make videos mostly with a silly or subtle twist. I prefer to make my vidoes with a short storyline but this isn't always possible. The "Disk don'ts" is a series of videos regarding the alternative uses of diskettes or floppy disks as some like to call them. Here is a link to my channel : (don't forget to subscribe, if you do also tick the little notification bell to receive a message every time a new video is uploaded)

Commodore 8-bit related

Cassiopei v2.0

The Cassiopei v2.0 is the successor of the Cassiopei. Meaning that the 2.0 version is a complete redesign of the Cassiopei. And this allowed to make a few new things possible. The original Cassiopei was easy to use, this is even easier as it allows for configuration through the OLED display and the menu buttons.


Although the Cassiopei is a cassetteport based device, it is far from being slow, as it's integrated fastloader loads with a speed of  more then 50 times faster then the standard Commodore kernal loader. The reason that the Cassiopei connects to the cassetteport is to be able to use this device on ALL 8-bit Commodore computers. With the exception of the SX-64 and the C64-GS (these models do not feature a cassetteport). The Cassiopei can be used for loading files/games (.PRG and .TAP), cross-development and hardware projects. The cassiopei features an expansion connector that allows you to connect additional hardware by utilising the I2C protocol. Which is a protocol very well known in the electronics industry.


The 1541-III is a IEC based .D64 reader designed to act like a real 1541 diskdrive. The .D64 images or .PRG files it uses are stored on a MMC or SD-card (FAT16).  It's small size and ease of use and trendy casing combined with the perfect display make this device a nice addition to the collection of a commodore collector.

This project started in 2006 and is no longer being developed.

Rotary dial numpad

The rotary dial numpad, is just a little joke. But it really does work as I wrote a driver for the VIC-20 and the C64 for it. The idea behind this project is to make an ode to the rotary dial mechanism. I designed a completely new rotary dial mechanism to be made with 3D printing technology and a small geared motor. 

Rotary joystick

The rotary joystick is designed to make playing the games "Declathlon" and "Crank Crank Revolution" much more fun.

The lighthammer

The lighthammer is a project that just had to be done. If you want a lighthammer of your own, the page includes all design files and production files you would need. The games I wrote for it are also available for download, including sources.

The arcade cabinet

The arcade cabinet I've build to demonstrate the lighthammer.

Android speech synthesis

Android based speech synthesis gives the VIC-20 Scott Adams adventure games a voice.


Information about several C64 lightguns and the few available games.

C64 Paddles

Information about the C64 and the paddle type controller.

C64 repair and modifications

My experiences with repairing my own equipment (fortunately for me this section isn't big).


Morse code toy

During a visit to a museum, my children learned about Morse code. Back home I decided to build them a device to play with. This device visualizes the dots and dashes on rotating screen instantly making it clear why morse code consists of dots and dashes. This project does not use any microcontroller or difficult electronics. You can build one yourself using a simple beeper/buzzer, a slow turning motor, a light and some glow-in-the-dark tape.

Glow in the dark display (YouTube counter)

From the moment I finished the morsecode toy, I wanted to make a lerger version, simply because I had plenty of glow in the dark tape left. Thanks to the ESP8266 this project was finally finished.

Linear clock

When the glow in the dark clock was finished it realized that I could relatively easily start another clock idea project... the linear clock. Very simple in mechanical design yet very effective in creating a very different kind of clock that is very easy to read.


My experiments with Computer Numeric Control or in short CNC.

4K pixel_beamer

This project is a 84x48pixel beamer (hence the name 4K pixel as 84x48=4032), it was used for the 1541-III project, to show the contents of the display to a large audience.

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