Serial Terminal for RC2014 Homebrew Z80 Computer To Allow USB Keyboard Input And HDMI Video OutputDesigned by RFC2795 Ltd in United Kingdom
Important - This product is designed to work with the original (V1.0 - V1.3) Raspberry Pi Zero. Due to changes with the UART on the new Pi Zero W (wireless) the software I currently supply will no...Read More…
RC2014 is a simple 8 bit Z80 based modular computer. It is inspired by the home built computers of the late 70s and computer revolution of the early 80s. It is not a clone of anything specific, but there are suggestions of the ZX81, UK101, S100, Superboard II and Apple I in here. It nominally has 8K ROM, 32K RAM, runs at 7.3728MHz and communicates over serial at 115,200 baud.
As a bare minimum, you will need a CPU, ROM, RAM, Clock and Input/Output module. The RC2014 is designed in such a way that you can build your own modules to expand it. As such, if you have access to similar components, or have specific needs, you might not need all the items I have on offer.
This module was designed for the RC2014 to allow it to connect easily to a tv/monitor and USB keyboard via a Raspberry Pi Zero. The Pi Zero simply acts as a serial termnial and connects to the RC2014 via the UART pins. It does not provide any computing power to the RC2014
You can read about the development of this on my Hackaday.io page https://hackaday.io/project/9567-5-graphics-card-for-homebrew-z80
If you wish, you can run any Raspberry Pi operating system and terminal software on a Pi Zero attached to this module - however, I strongly recommend using PiGFX by Filippo Bergamasco. This is a bare metal terminal emulator for the Pi Zero which has been optimised for the RC2014.
This module has been redesigned to allow you to still talk to the RC2014 via FTDI when it is in place (handy if you use a serial keyboard with it!) it adds a reset button and is in the new style RC2014 layout. Includes yellow phono socket for composite out.
At the time of listing this, the Pi Zero is still in farily limited supply although it is getting easier and easier to get hold of them. Keep en eye open on Pimironi, Adafruit, Canakit, Micro Center or your local Pi retailer as batches of them do turn up regularly
All components are new.
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Martin | April 22, 2019
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