Digital IO Module For RC2014 Z80 Homebrew Computer

Name: Digital IO Module For RC2014 Z80 Homebrew Computer
SKU: 6984
Price: 16.98 USD
Availability: InStock
Rating: 4.83 (3 reviews)

(3 Reviews)

A kit of parts to build the Digital I/O module for a RC2014 computer

Designed by RFC2795 Ltd in United Kingdom

Digital IO Module For RC2014 Z80 Homebrew Computer 1

Digital IO Module For RC2014 Z80 Homebrew Computer 2

Digital IO Module For RC2014 Z80 Homebrew Computer 3

Digital IO Module For RC2014 Z80 Homebrew Computer 4

2017-06-09T12:43:06.110Z-RC2014 IO Board v2.1.png

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A kit of parts to build the Digital I/O module for a RC2014 computer

What is RC2014? 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 anythi…

What is RC2014?

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.

What do I get?

This listing is for a kit of parts to build the Digital I/O module only. For the rest of the modules, see my other products. This kit allows you to control 8 individual LEDs or read 8 individual push button switches from simple BASIC commands or Z80 assembly language

Note that this is an updated version of the Digital I/O module, which has tighter addressing. The input and output ports are independently configurable to be port 0, 1, 2 or 3.

Choose from 2 options:

1. Full Kit - This includes all the components to build up the Digital I/O module including:

header pins
chip sockets
logic chips
8 green LEDs
8 tactile switches
resistors
diodes

2. PCB Only - Yup, you guessed it. Only the bare PCB!

All components are new.

RC2014 is a trademark of RFC2795 Ltd.

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RFC2795 Ltd Shipping Policy:

Products are normally shipped next working day, however during busy periods this may extend slightly.

Tracked or Tracked & Signed options are available to most locations. This may not get your kit to you any quicker, but it adds peace of mind that you know where it has got to.

It is your responsibility to pay any import duty or other taxes where appropriate.

Important note for European Union customers Tindie is unable to comply with new EU tax regulations, so unfortunately I am no longer shipping to the EU via Tindie, but do sell them through a website which is does handle the VAT and tax payments.

Review Breakdown

Average Ratings

Product: (5.00)

Documentation: (4.33)

Shipping: (5.00)

Communication: (5.00)

David | May 12, 2021

Digital Input & Output Card

I wanted to try and source the parts myself to help get a better understanding of the various different types of components. It was so easy to assemble and it worked first time.

Steven | May 24, 2020

Easy enough to assemble

Documentation is a bit minimal but follow the photo and your be just fine. I recommend using jumpers for the out/in ports to be more flexible. There is a small basic example to get you started and with a bit of ingenuity the board can be used for a number of software and hardware management purposes.

Antony | Dec. 9, 2019

Easy to contruct board that is easily controlled by Basic

This module is simple to construct. The instructions on the website under "Assembly Guides" refer to a previous version of the board, but you can find all that's needed on the main Digital I/O page, including a couple of test programs written in Basic.

Rather than adding wire links to fix input and output ports, I added my own headers and used jumpers to select the port. This at least demonstrates that by selecting Port 1 (using jumpers) instead of Port 0 (and changing the program to suite) it still works.

When the computer is booted, all 8 LEDs light up and remain lit until you issue the OUT 0,0 command. All a bit bright if working in CP/M without a Basic interpreter running! In this case it is possible to boot up into Basic, issue the OUT 0,0 command, then reset the computer and go into CP/M.

An entertaining module, the switches and LED's allow you try out physical computing under Basic command, with the possibility of wiring in your own interfaces - RC2014 Robot anyone?