Telstar, Videotex and Communications
Using Minitel Terminals with Telstar
a Minitel Terminal, switches in a final translation layer at the point of rendering a frame. This translation layer converts Prestel type frames (CEPT3) to Minitel type frames (CEPT2), it should be a simple process but alas, it is not.
Telstar is a CEPT3 Prestel like system and cannot host CEPT2 type Minitel frames, it simply converts CEPT3 frames to CEPT2 frames on the fly at the point of rendering.
If for some reason Telstar fails to automatically detect the Minitel Terminal a single press of the Connection button (two presses will disconnect) should sort things out.
Gemini 80-Bus
Gemini 80-Bus Resource
This page is designed to bring all of my Gemini software, firmware and documentation into a single resource. I have also included documents that are related to the Gemini system.
Arduino/Raspberry Pi
Removing the Bounce from a Rotary Encoder in C++
This code was developed from an idea by Oleg Mazurov and is presented here as a complete class that can be added as a tab in an Arduino sketch.
Altair, Apple II, BBC Microcomputer and all things CP/M
Experiencing the Altair 8800
For anyone with an interest in early 8 bit computers, even for those of us in the UK, it is impossible not to recognise the importance of the Altair 8800. In this article I attempt to share my experiences with this awesome machine.
