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...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 adds an ESP8266 micro to the serial port of the RC2014. It is supplied with ESP-Link firmware pre-installed on the ESP8266, which allows easy remote connection to the RC2014 over a Wifi network. The ESP8266 can be reprogrammed with other firmware, via the ESP8266 SDK or use the Arduino IDE. This can allow such uses as streaming the RC2014 output live to the internet (Twitch TV for the 1980s?) or even surfing internet based BBS.
Jumpers allow you to connect the ESP to the primary UART, or to UART 2 if you have the SIO/2 Dual Serial Module. The ESP8266 can be put in to programming mode and reprogrammed from a standard FTDI cable via jumper selection too.
A couple of the GPIO pins are connected to LEDs, which can indicate Wifi Connected and data activity. All the GPIO pins are brought out to pads and a small prototyping area is available for adding more functionality.
Note that the ESP8266 module itself, and the 3v3 regulator are surface mount components - however, they are quite large, so should be easily manageable, even by those that have only done through-hole soldering before.
Standard Kit This includes all the components to build the ESP8266 Wifi Module, including PCB, ESP-12 Module, header, jumpers, LEDs and passive components.
PCB Only Go on, take a guess what this kit includes ;-)
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Tinkering with old 8 bit home computers to see what can be done with modern solutions.