Projects of Jan Derogee
contact: Jan Derogee


Welcome to my 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 the items below, just let me know.
Kind regards, Jan Derogee 

Commodore 8-bit related

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.

Project 1541-III

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.

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).


My experiments with Computer Numeric Control or in short CNC.
Morse code toy for the kids

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.
4K pixel_beamer

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

PIC18F2620 bootloader

This bootloader was used in the 1541-III, thanks to the "Tiny bootloader" project from Claudiu Chiculita. It is hosted here because it was of great use to me and might be of great use to other people also.

Minimig related

Minimig and alternative cores

The minimig is a project by Dennis van Weeren, the first Amiga computer inside an FPGA. This wonderfull design can transform in to many other different kind of machines depending on what kind of core is loaded. This website holds a VIC20 core (orginal VIC20 FPGA code comes from FPGA arcade (MikeJ - jam 2008)).

Minimig and extra joystick button(s)

The minimig support the extra joystick button that combines UP & DOWN, this makes it possible to enter the OSD menu without pressingthe menu button on the minimig itself. So now you can control your minimig from your lazy chair all with a single joystick.
Minimig SCART cable

The minimig has a VGA connector but can output in 15KHz and 31KHz meaning that you can connect it to a VGA monitor or to a television (using the SCART's RGB inputs).

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