ZX81 RULES OK!

 

Here you will find a collection of articles of enhancements for the ZX81 Personal Computer. Some are brand new and others revisit the many projects I have contributed over the years. Enjoy!

 

1. Introduction

2. ZXKBDv3 Keyboard Interface with High Speed Com Port

3. AT Keyboard to ZX81 Interface (1997)

4. Original ZX97 Article (1997)

5. Updated ZX97 Lite article (2004)  - corrected zx97.rom

6. 32K RAM plus 32 bit memory mapped I/O (new)

7. Original ROMKEY article (1996)

8. Convert and display high resolution graphic.bmp files on a ZX81 (1998)

9. Speed up a ZX81 by skipping video frames (old)

10.SON of ZON Sound and I/O board (old and new)

11.Add an Alphanumeric LCD to your ZX81  (1998)

12.8 Channel Analog to Digital Converter for the ZX81

13.High Resolution Graphics on a 1K ZX81

14.ZX81 Video Tutorial

15.NOVA Documentation

16.ZX ROM patch for auto running BASIC from RESET

17.TINY RAMDOS - ZX81 FILE DIRECTORY PROGRAM 

18.ZX81 GAME of LIFE

19.Thanks for the Memories

20.A simple Proportional Joystick Interface

21.CHR$X16 - Enhanced Video Characters  for the ZX81

22.EZ80 ROMLESS CONTROLLER

23.ZX81nv - addon or standalone ZX81 control

24.ZX TURBO - A ZX81 Clock Doubler

25.NINTENDO GAMEPAD FOR THE ZX81

26.SERIAL PORT FOR THE ZX81

27.AUTOBASIC for the ZX81 or ZX97

28.White on Black ZX81 video characters

29.Shades of Memotech Hires

30.Why Wait?

31.ZXVOICE - A simple voice synthesizer

32. HS-2 (Revised)  DUAL TS1000 - HIGH SPEED INTERFACE

33. HS-3 - 32 BIT I/O  COMMUNICATION PORT

34.HS-4 - DUAL TS1000 with SHARED MEMORY

 

Contact me :  Wilf Rigter

 

wc reflections  -  a snip of my web cam feedback  experiments

 

 

 

 

 

 

 

 

 

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