The Sinclair ZX81: a Raspberry Pi retro restyle – Part 2

Previously on ‘ZX81: a Raspberry Pi retro restyle’: I used a headerless Arduino Leonardo to connect a ZX81 microcomputer keyboard to a Raspberry Pi via USB, using code to handle normal, shifted and function-shifted key presses.

Now read on…

ZX keyboard controller

A new ZX keyboard connected to the USB controller – an Arduino Leonardo

After some searching on eBay, I found an old ZX81 going cheap because it lacked cables, though when it arrived, I found the computer itself to be in excellent condition. Possibly it has never been used, though how if that were the case the cables were lost and the box got so tatty is a mystery I will probably never solve.

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The Sinclair ZX81: a Raspberry Pi retro restyle – Part 1

I love the design of the Sinclair ZX81. It was never a great computer, even in 1981. It only had 1KB of on-board RAM, it was slow, it was small, it could only do black and white graphics, and it’s membrane keyboard was useless for fast typing. But it looked fantastic: black, sleek and totally futuristic. Almost all other 1980s microcomputers now look very dated. No surprise there, of course, but the ZX81 still looks amazing.

Hats off to Sinclair Research’s industrial designer, Rick Dickinson, for devising a design that is genuinely timeless.

The ZX81 membrane keyboard

The ZX81 keyboard hooked up to the Pi via USB and Arduino

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