Controlling touch sensing buttons

The solution is said to offer noise immunity and water resistance. The user interface in the Whirlpool line employs one CapSense Plus device to implement 14 buttons and drive leds in the rotary dial control. A second device in the control display powers eight buttons, led backlighting with dimming functionality and a buzzer. "We wanted an intuitive, durable control panel for the Premium Collection line that was also attractive to end users," said Giorgio Zambon, project manager at Whirlpool. "CapSense Plus delivered a smart user interface and simplified the design process by controlling multiple functions beyond the touch sensing interface."