Pushbutton Functionality
Though the user has a choice to make from a range of onscreen UIs, which includes multitouch gestures, swipes, taps and double taps, the tangible button press feel is irreplaceable. The hardware button press works as the most reliable way of telling if the contact has been made.
Transparent Pushbutton with RED Backlight
The hardware button on-board the Button R Click Board™ itself is transparent, 6.8mm in diameter, and offered with a red LED backlight. The LED illuminates as and when the button is pressed and is controlled separately through the PWM pin.