Search found 229 matches
- Thu Mar 14, 2024 1:10 pm
- Forum: Hardware
- Topic: Atari joystick without ZXpand+
- Replies: 33
- Views: 5494
Re: Atari joystick without ZXpand+
I remember modding my Timex Sinclair 1000 in the mid 80's with a 8255 General Purpose IO chip and memory mapped it to the computer and attaching a DB9 connector to it. I then hacked CornSoft's Frogger and got a digital joystick to work with the game. Google Wilf Wrigter. He had many articles on how ...
- Tue Nov 14, 2023 2:00 pm
- Forum: Welcome Area
- Topic: Newbie to the Sinclairverse, help with ZXpand+?
- Replies: 7
- Views: 7022
Re: Newbie to the Sinclairverse, help with ZXpand+?
Welcome to the wonderful Sinclair universe. We are practically neighbors! I live south of Erie PA and about 80 miles from Cleveland.
- Thu Jul 13, 2023 3:34 pm
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 34085
Re: SD81 Booster
Thanks for the info. I didn't read the technical document far enough
- Wed Jul 12, 2023 11:43 pm
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 34085
Re: SD81 Booster
This is a very interesting project! Thanks for making it opensource :D . I have a friend who has his own hobby fab shop. I may have him order a pcb when he orders some boards for a system he's developing. He also has surface mount soldering tools, laser cutter and 3D printers so I'm sure I can get o...
- Fri May 26, 2023 1:59 pm
- Forum: Development
- Topic: ULA 'TAPE IN' Expected Voltages?
- Replies: 21
- Views: 3564
Re: ULA 'TAPE IN' Expected Voltages?
Yes, I'm generating a digital pulse on a generic i/O pin to the Tape In pin of an unmodified ZX81.
- Fri May 26, 2023 4:27 am
- Forum: Development
- Topic: ULA 'TAPE IN' Expected Voltages?
- Replies: 21
- Views: 3564
Re: ULA 'TAPE IN' Expected Voltages?
I'm not sure if this will help but I've experimented with developing a SD card reader with microcontrollers (Arduino Due and Parallax's Propeller) and converted the data to a bit stream that used the same timings as the cassette format. Both use 3.3V logic to create the pulses and I never had any is...
- Fri May 26, 2023 4:20 am
- Forum: Sinclair Misc
- Topic: Ian buys a (sort of) Zeddy,... Timex-Sinclair 2068
- Replies: 7
- Views: 7211
Re: Ian buys a (sort of) Zeddy,... Timex-Sinclair 2068
I had a TS2068 back in the mid 80's. I remember the computer club I went to had a meeting where we assembled the Spectrum rom cartridge. Sadly my power cord plug got damaged and when I rewired it with the polarity reversed by accident. It overloaded the TS2068 and I never did figure out how to get i...
- Thu Dec 15, 2022 3:47 pm
- Forum: Welcome Area
- Topic: Hello from Seattle!
- Replies: 3
- Views: 1719
Re: Hello from Seattle!
Welcome to this wonderful forum. I have found all the members helpful in my ZX adventures . A little off topic but I'm interested in your FPGA projects. I have DE0-Nano and a DE10-Lite boards and trying to get into FPGAs so PM me about them sometime. Thanks!
- Thu Nov 10, 2022 6:35 pm
- Forum: Sinclair Misc
- Topic: Mahjongg's ZX81+38 On Hack a Day
- Replies: 1
- Views: 7141
Mahjongg's ZX81+38 On Hack a Day
They just posted on Hack-A-Day "Building a Sinclair Zx81 in 2022 with all New Parts" https://hackaday.com/2022/11/10/buildin ... new-parts/ If you look closely at the board it is mahjongg's ZX81+38 viewtopic.php?f=7&t=3357&hilit=zx81+38
- Thu Nov 03, 2022 7:00 pm
- Forum: WANTED
- Topic: HRG Toolkit by Stefan Schmidt Wanted
- Replies: 2
- Views: 6950
Re: HRG Toolkit by Stefan Schmidt Wanted
Are you talking about this? http://www.swatosch.de/zx81/