For specific AZ15 files see the AZ15 Project Files to Download page.
A belated homage to Tim Hartnell, one of the driving forces behind the early ZX81 scene and key founder of the ZX Computing magazine. 'Tims Checkers' is based around a board game challenge Tim set in an issue of ZX Computing back in October 1982.
ZX81 Draughts - Challenge Accepted 34 Years To Late
ZX81 Draughts Challenge - Part 2 - A Little Hi-Res
ZX81 Draughts Challenge - Part 3 - Tims Checkers
You Tube Review
The vernerable Villordsutch AKA Rod Bell goes head to head with Tims' Checkers.
A little Roman Numeral checker. Nothing complicated really just something you might find in a Magazine to type in back in the day. This was my first go at using the wonderful Z88dk C compiler to build ZX81 software.
The ZX81, Z88dk, Apps & Roman Numerals.
An Arduino / AVR project adding a USB mouse to a ZXpand and ZXpand+ via the joystick port. The interface should work on just about any 80s Micro with a standard Atari joystick pin out (some mods may be required).
USB Mouse For The ZX81 And ZXpand (Part 1)
USB Mouse For The ZX81 And ZXpand (Part 2)