Annealing your 3D Prints – Potential magic, depending on your model!
After my long journey making my final Ultimate Cherry MX Version of my Hex Keypad, and in fact being very happy with the results I’d achieved, I was still contemplating …
Minimalist Europe Card Bus (MECB) – Let’s push our 6809 speed!
Following my recent 6809 system testing video, a viewer asked if the system could run at 3Mhz, or perhaps even a little higher. Join me as I initially test the …
Minimalist Europe Card Bus (MECB) – 6809 Testing, Coding, Sound!
Having finally assembled an initial 6809 based system, following the completion of my recent Motorola I/O + Sound card, we should now give the system a bit more thorough testing. …
Hexadecimal 4×4 Matrix Keypad – Ultimate Cherry MX Version
In a couple of recent posts / videos, I covered the beginnings of my Hexadecimal Keypad design journey. In these earlier posts, here and here, I presented the history of …
Minimalist Europe Card Bus (MECB) – Motorola I/O Card + Sound
With my first Minimalist Europe Card Bus CPU Card finally completed, to my satisfaction. Next up, is my Motorola based I/O Card, which will finally enable a complete modular 6809 …
Hexadecimal 4×4 Matrix Keypad – Tactile Switch Version (Part 2)
This post / video follows on from Part 1 of the Tactile Switch version of my Hex Keypad project, where I assembled my first Keypad. For Part 2, it’s now …
Minimalist Europe Card Bus (MECB) – 6809 / 6809E CPU Card – v2.2 Update!
This post follows on from my earlier Minimalist Europe Card Bus posts and videos. The 6809 CPU Card has been a long journey. First v1.0 then v2.0, and now v2.2 …
Hexadecimal 4×4 Matrix Keypad – Tactile Switch Version (Part 1)
Like many, I have a number of projects that have previously stalled, for various reasons. One of those previously stalled projects is my Hexadecimal Keypad journey. This project was initiated …
Retro CPU Interrupts – Driver Options
I’m now finalising the design of my first I/O Card for the Minimalist Europe Card Bus (MECB). I need a driver circuit for a single connection to an Interrupt input …
A Retro Motorola MC6850 ACIA Baud Rate Generator
I’m currently working on the design of my first I/O Card for the Minimalist Europe Card Bus. As mentioned in my previous post / video, my intention is to first …