Introduction to the COSMAC Elf from PCBWay Building the COSMAC Elf from PCBWay is a quick, and inexpensive way to learn the COSMAC 1802. This is another project by Mr. Lunde. You can order the boards at this link. You will likely want to get the main processor (CPU) board, Read More »
Introduction to the RTC Module for RC2014 The RTC Module for RC2014 allows your system to keep time. This module allows you to take advantage of the timestamp feature in Z80DOS, and ZPM. You can purchase this module on Tindie’s website. The module I am using arrived as a kit, Read More »
How I’m Lowering the RC2014 Baud Rate My approach to Lowering the RC2014 Baud Rate is very simple. I simply looked at the original clock circuit, and built another frequency divider. In this post, we’ll discuss how easy that is to do. You already have the ability to set your Read More »
Introduction to using RS232 on the RC2014 In this section, we’ll be using RS232 on the RC2014. In this case, I just purchased a generic module for this. There are several reasons we might want to use RS232. In my case, I wanted to communicate to a BASIC module on Read More »
Introduction to the VT-132 Terminal Emulator for RC2014 The VT-132 Terminal Emulator for RC2014 allows you to connect a keyboard and monitor directly to your RC2014. This mostly eliminates the need to rely on a modern computer with a terminal emulator. The board comes as a kit from The High Read More »
Introduction to the RC2014 Dual Serial Module The RC2014 Dual Serial Module allows you to have two separate serial ports on your RC2014 computer. The RC2014 is a Z80 based computer designed for hobbyists to learn how processors actually work. It supports thousands of programs that are available for CP/M, Read More »
How to build an External Wifi Modem for the RC2014 In this section, I’ll cover my procedure for building an External Wifi Modem for RC2014 I’m using the ESP-01 module for this with a dual serial module. If you don’t want to build your own, you can purchase the official Read More »
Introduction to RC2014 with ROMWBW The RC2014 with ROMWBW firmware allows you to run older operating systems such as CP/M. This machine comes as a kit. I ordered mine from Tindie. Although this is not a true vintage computer, it does have vintage components, such as the Z80 processor. The Read More »
Introduction to the Cosmac Elf Control Circuit The Cosmac Elf Control Circuit allows you to enter a program through the front panel switches. There are a few things that need to happen to make this circuit work properly. In this section, we’ll go over each component, and I’ll explain the Read More »
Introduction to Upgrading CPUVille SBC ROM In this section, we’ll walk through the process of Upgrading CPUVille SBC ROM to version 15. This is a Z80 Computer which was designed by Donn Stewart. You can purchase the computer, and the bus display kit (slow board) from the CPUVille website. It Read More »
