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 Forum: General Discussions   Topic: Extra large keyboard

 Post subject: Re: Extra large keyboard
Posted: Tue Jun 14, 2022 12:34 pm 

Replies: 4
Views: 1268


... require one or two meta keys to perform basic functions, such as typing brackets. XR1909 true programing keyboard which may be partially made from XR0225 keyboard tiles. Most importantly for programmers, it allows round brackets, square brackets, curly brackets and angle brackets to be typed without ...

 Forum: Hardware   Topic: Stub Implementation Of Wilson Mines Co RAM Module

Posted: Tue Mar 22, 2022 1:38 pm 

Replies: 0
Views: 17082


... 2kg. No charge. Pay it forward. If anyone else wants to make their own variants of the design, please use product codes as follows: ⋅  XR0284/D: 4*4 chip stacked 62256 32KB SRAM, 28 pin, 0.3 wide DIP. ⋅  XR0285/D: 3*4 chip stacked 62256 32KB SRAM, 28 pin, 0.6 wide DIP. ⋅  ...

 Forum: Hardware   Topic: GyroScatter Low Density Optical Boot Disk

Posted: Sun Jan 09, 2022 8:28 pm 

Replies: 1
Views: 605


The XR0221 is an untested, prototype circuit for bootstrapping a computer without ROM. I have five in stock and I'll order more if it is popular. No charge for hobbyists.

Newbies may be particularly interested in the growing list of giveaway parts which include my 5V, reversible indicator lights.

 Forum: General Discussions   Topic: Extra large keyboard

 Post subject: Re: Extra large keyboard
Posted: Sun Jan 09, 2022 8:25 pm 

Replies: 4
Views: 1268


I've been working on input peripheral boards. Now available and in stock: ⋅  XR0220 (untested): Possibly the world's first gaming hexpad. 20 button keypad which is compatible with most NES and SNES games. ⋅  XR0256 (untested): 16*16 keyboard matrix ...
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