A 32kb Memory Expansion Board for the microKIM

[ 3,925 keer bekeken / views ]

As you may know, I own a microKIM (KIM-1 clone) Single Board Computer (SBC). 

It is a trip down memory lane to work with the incredible simplicity of what was once “top of the bill” technology.

The original KIM-1 I once owned had 1kb of RAM and the microKIM has 5kb RAM. That is a big improvement but even so it can be better. As Vincent Briel (the designer of the microKIM) made a career change, his company “Briel Computers” is no longer in business and you can no longer buy his 32kb memory expansion board. 

And so it came to pass that I had to design a memory card by myself. With this 32kb memory expansion board the total amount of RAM will be a whooping 37kb! More than enough to run a BASIC interpreter (and more) and in combination with my “digital Tape Recorder” I now have a “state of the Art” vintage computer!

The overall costs for the complete board are ~€ 29,-. The most expensive part being the 40 pin connector (~€8,-)!

If you want a microKIM Liu Ganning made and sell’s a microKIM clone “PAL-1” for only $70,- !!!

My ADW2101 board fits perfectly on the PAL-1 as the extension connector is the same as on the microKIM. Only the position is different.

This entry was posted in Arduino, Computer, ESP8266, Hardware, KIM and tagged , , , , , , . Bookmark the permalink.

5 Responses to A 32kb Memory Expansion Board for the microKIM

  1. Edzard Kolks says:

    Beste Willem,

    Zijn er nog PCB’s beschikbaar (tegen betaling)?

    Groet,

    Edzard

  2. Dave Hassler says:

    I received your PCB quickly (vers. 2.0), and it was soldered together in a flash – about 20 minutes. I’ll say this: what an improvement over my home-made hard-wired card! The quality of the PCB is excellent, as well as the labelling on the board; I did not have to consult the schematic at all to build this simple and well-designed little memory card. Thanks, Willem!

  3. Dave Hassler says:

    Hi Willem. Do you have PCB gerber files for this project? I would like to build one. Thanks, Dave

Leave a Reply to Dave Hassler Cancel reply

Your email address will not be published. Required fields are marked *

The maximum upload file size: 4 MB. You can upload: image, other. Links to YouTube, Facebook, Twitter and other services inserted in the comment text will be automatically embedded. Drop file here

This site uses Akismet to reduce spam. Learn how your comment data is processed.