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Tag: Retro

Computing / Electronics / Retro

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 …

Computing / Electronics / Retro

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 …

Computing / Electronics / Retro

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 …

Computing / Electronics / Retro

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 …

Computing / Electronics / Retro

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 …

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