SC130 is an easy to build, low cost, Z180 RomWBW Computer. The kit comes complete with serial adapter, USB cable, and a micro SD card adapter. Just add a micro SD card for storage and a computer running terminal software, and you have a complete system able to run CP/M software.
In part 1 of this series we took a very quick tour through the whole process of designing a product. In part 2 and part 3 we designed the electronics for a digital I/O module. We will now design the circuit board.
In part 1 of this series we took a very quick tour through the whole process of designing a product. We will now begin a much more detailed look at designing a Digital Input/Output interface for a Z80 computer.
Someone recently asked me a few questions about design, which got me thinking about writing a series of posts for this website.
I hope to encourage anyone who has considered designing their own retro computer add-on, or indeed a whole system, to have a go. Getting that first professional looking PCB in the post is very rewarding and is relatively cheap.