Drivers for Vintage HDSP Dot Matrix Displays

Arduino compatible library for driving HDSP/QDSP dot matrix displays.

Similar projects worth following
  • Description
  • Details
  • Files 0
  • Components 0
  • Logs 0
  • Instructions 0
  • Discussion 0
Source and datasheets linked below
I found these QDSP-2273 displays and was interested in trying to drive them. A lot of info about them here:

I found a snippet of example code at: and decided to write a full driver library for it. The driver will show static text, scrolling text, and 'hacker' text like this:

AFAIK this is the most featureful and out-of-the-box plug and play library I've seen for these displays. This should work on a wide variety of vintage 4 char dot matrix displays. Hewlett Packard made these under a handful of different packages

Enjoy this project?



Similar Projects

Does this project spark your interest?

Become a member to follow this project and never miss any updates