Viewing the output of a C64 on a laptop via an STK1160 based video grabber

January 22, 2020 - Reading time: 2 minutes

I bought a cheap (< €15) USB 2.0 video grabber which is based on the SyntekSTK1160 chipset. My goal was to display the output of my Commodore 64 on the screen of my laptop. The cable which connects the C64 with the video grabber allows me to use an s-video signal.

Commodore 64 connected to Linux system via video grabber

Read more


Fixing failure of software upload to µController

December 5, 2019 - Reading time: ~1 minute

If uploading software from the Arduino IDE or the commandline via avrdude to a microcontroller like an Arduino or an ESP8266 fails due to missing access rights ("Permission denied"), what helps is either

sudo chmod a+rw /dev/ttyUSB0

or adding the user to the group "dialout":

sudo usermod -a -G dialout theuser

See: https://forum.arduino.cc/index.php?topic=495039.0


Repairing the file system of Debian after hard shutdown

October 14, 2019 - Reading time: ~1 minute

Sometimes after a hard shutdown the file system of my laptop is corrupted and Debian starts in maintenance mode.

What helps is repairing the file system using the command

fsck -y /dev/sda1

See: https://serverfault.com/questions/348315/debian-system-wont-boot-due-to-corrupt-file-system


Changing the RAM chip of the Super Snapshot V5

September 4, 2019 - Reading time: 2 minutes

The manual of the Super Snapshot V5 mentions that the 8kB RAM chip of the cartridge can be upgraded to 32kB. Back in the days™ it was possible to send the cartridge to LMS Technologies. Nowadays this is not an option anymore and I was happy to find an article by Chris Kobayashi which describes the required steps. Since the article does not contain any illustrations, I decided to share some photos I took when I changed the RAM of my Super Snapshot V5.

Read more


Re-soldering the reset button of the Super Snapshot V5

April 23, 2018 - Reading time: 2 minutes

In an act of clumsiness I pulled off the cables connecting the reset button of my Super Snapshot V5 and the PCB. I asked Twitter and Mastodon for help, but to no avail. The search engine of my choice also did not come up with any helpful link. Luckily information about the Commodore 64 is all over the web. Read more


Hello World!

April 23, 2018 - Reading time: ~1 minute

This is the first post, but there has been a time before this blog. The old content ist old, but it still exists.