Couch to 64k Part 3: Adding a Character LCD Display to our Z80 Breadboard Computer
In the previous part of this series we attached a ROM chip to our Z80 so we can run programs. But running programs is of little use unless our computer has some way to communicate with the outside world. We need input and output (I/O). In this part we’ll discuss how input and output work …. Read More
Connecting an LCD to a Z80 with Two Glue Chips
I’ve been breadboarding a Z80 computer lately. I wanted a test bed to explore ideas and to learn how the hardware worked. I also wanted to be able to create a small, self contained Z80 machine including both input and output devices. The simplest output device to connect is probably a generic character LCD display. …. Read More
HDSP-0762: Hex Displays Made Easy
If you’re working (or playing) with digital electronics then you’ll probably want to display your data data on hex displays at some point. Normally this involves using some kind of decoder to turn your data into something that can drive a 7-segment display. Which means extra chips, extra wires and extra breadboard space. I set …. Read More