BUTTONSCOPE / Labs & learning
Keyboard lab
Inspect physical key positions, key/code values and modifiers in ANSI or ISO views.
Simultaneous key and rollover test
Observe which keys the browser reports held together and the highest simultaneous count in a trial.
Keyboard repeat and chatter observer
Separate automatic repeat events from closely spaced new presses using an adjustable timing threshold.
Keyboard key test
Inspect physical key positions, key/code values and modifiers in ANSI or ISO views.
Choose a focused test below. Use the same browser and connection when comparing runs. A recorded event is evidence of browser input, not a complete hardware diagnosis.