8085 SBC with Scrolling LED Display

My first expansion board for the 8085 Single-Board Computer prototype: a PDSP1881 character display! For this project, I've modified a 24-pin socket to allow me to plug in a 2716-compatible EEPROM (this avoids waiting for UV EPROMs to be erased). The connector for the prototype board is made of extra-long machine pin SIP socket strips.

The program works with two main components: a circular array storing the null-terminated message string, and a FIFO buffer for the LED display. The code was written in pure 8080/8085 Assembly. For more information, check out http://www.glitchwrks.com/8085projects/

I'll have this project with me at the Maker Faire in NYC this weekend -- look for the MARCH (Mid-Atlantic RetroComputing Hobbyists) tables!

Category:

Science & Technology

Tags:

• 8085
• 8080
• SBC
• single board computer
• LED
• scrolling
• glitch works
• Maker Faire
• assembly language
• micro
• microprocessor
• microcontroller
• uC
• uP

[abfig78]

I love it!! Please look at my vids. FIGTRONIX

i would have many circuits ready to pring even a 8085 altair style of computer.

[glitchwrks]

@abfig78 thanks for the comment! Very nice machine of yours...the 8085 is a very fun chip! I will be doing a revision run of the board soon...if you're interested in one, let me know.

[29riteshkakkar]

What your mail id??

[29riteshkakkar]

Hi, i like your project but i don't know how to use uP, for this i am learning it.

Check my video scrolling led without uP..!! Thanks

[meepferret]

yay! see you at the Hall of Science Maker fair!