Traditionally, interfacing a microcontroller with an n-by-m keypad required n + m of the microcontroller's I/O pins for keypad scanning. Keypad designs that conserve microcontroller pins have been ...
This is an application note of Microchip’s USB keypad reference design. It covers the demonstration highlights of USB keypad, the procedure of using the USB keypad, the hardware layout, the block ...
The latest addition to the popular CapSense Express capacitive touch-sensing controller line, the CY8CMBR2016 device enables designers to implement capacitive matrix button systems up to 4 x 4 buttons ...
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