The keyboard, which he is calling z.48, is based around the Arduino Pro Micro running a firmware generated on kbfirmware.com, and features some absolutely fantastic hand-wiring.

For British kids of a certain age, their first experience of a computer was very likely to have been in front of a Sinclair ZX81. The lesser-known predecessor to the wildly-successful ZX Spectrum, … ...

The Dome Switch Keyboard Widely used, the membrane is sculpted with a raised dome for each key. (2) A keyboard that tolerates dirt and spillage that would otherwise cause a regular keyboard to fail.