In this second post chronicling the design and build of an 8 bit microcomputer from scratch, the resistors that were previously being used to simulate a memory are replaced with an actual memory chip. Although there are modern options available for programmable memories that are much easier to program and
This post chronicles the design, programming, and testing of an external keyboard interface for my TS-1000, using only a single ATF22V10C GAL IC (Generic Array Logic Integrated Circuit chip)! The same interface will work on a ZX81, and a similar principle can be utilized on an interface for the ZX
This post covers how I made my own breakout board for prototyping new circuits for my TS-1000. The end result plugs into the expansion port/card edge of a ZX81/TS-1000, has female headers for jumper wires that can be connected to a breadboard, and allows for prototyping and testing
This is the second part of a two part post in which I share every step of designing and building a prototype mechanical keyboard for my TS-1000, or with some adaptation, could be applied to other models of retro computers. Part 1 covers the design and manufacture of the acrylic
In this two part post I will share every step of designing and building a prototype mechanical keyboard for my TS-1000. There are two free online tools mentioned in this part that will help you design and build your own custom keyboards. Part 1 will cover the design and manufacture