A technology that gained popularity in controllers, Hall Effect dramatically expands the capabilities of the K4 HE. Now, you can build your own keyboard with adjustable actuation, rapid trigger ...

That seems to be what’s going on with this beautiful split-flap clock build by [Erich Styger ... stepper drivers and interfaces for the Hall-effect sensors needed to home each display.

Expensive for the basic design Key wobble raises build quality concerns Plastic USB cable Very loud Logitech is taking a massive leap and entering the Hall Effect keyboard market with the Pro X ...