I was intrigued until I started looking at prices to buy all the bits. The Raspberry Pi Pico is only £4, but the custom boards and faceplates don't half push the price up. Well over 100 sovs I think, and that is without shipping to the uk and import taxes.
Still - good work :D
https://www.raspberrypi.com/news/build-your-own-handheld-zx-spectrum-with-raspberry-pi-pico/ (https://www.raspberrypi.com/news/build-your-own-handheld-zx-spectrum-with-raspberry-pi-pico/)
(https://www.raspberrypi.com/app/uploads/2024/01/Screenshot-2024-01-22-at-23.02.28-1024x562.png)
Very nice! But I dare say there's an emulator online somewhere.
Ah yes, there is ..
https://jsspeccy.zxdemo.org/
Never had one myself. I'd love a physical ZX-81 though.
Actually I do have an original one in the loft, but no old-fashioned telly to connect it to.