This was however not always the case, and from the days of 8-bit home computers onwards making a custom keyboard often meant taking a surplus one from elsewhere and adapting its matrix to suit ...

The only electronics in this keyboard is just a matrix. Despite all this, [rampadc] managed to create a breakout board with a decade counter and an SPI GPIO expander. The board [rampadc] made ...

(1) Most QWERTY computer keyboards use a single rubber-like membrane underneath the keys that makes contact with a circuit board when the key is fully depressed. Also called a "dome switch ...