PICOZX81 - a ZX81 emulator for Raspberry Pi Pico

Author	Message
Volhout Guru Joined: 05/03/2018 Location: Netherlands Posts: 5746	Posted: 07:35am 18 Dec 2024       Grogster, I owned a ZX81 once, as part of a heritage. And yes, it was too limitted. But now adays  I might find it a challenge to work with such limitations. That is why I alsway take part of the MMBasic programming challenge. Limitted resources, and see what you can do with them... One thing I remember seeing was a way to safely control external devices with a ZX81. They glued (yes!) LDR's (light dependent resistors) to the monitor screen (blue-tak). And by lighting sections of the screen they controlled relays. I found that so ingenious I remebered. Nothing with edge connectors, and 74LS374 latches, address selectors, opto couplers...not...via the monitor itself. Volhout Edited 2024-12-18 17:38 by Volhout