Electronic Design

Button Replacement Enables Complete Matrix Keypad Solution

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 ...
Electronic Design

Basic Circuit Eliminates Numeric Keypad Polling

Using eight digital inputs, this circuit simplifies decoding of the common membrane 4x4 keypad matrix and eliminates the traditional requirement of scanning rows or columns. Any X-Y switch matrix, ...
EDN

USB Keypad Reference Design

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 ...
Machine Design

Flexible, thin keypad controls access to enclosures

Giving various users access to enclosures just got easier, thanks to a flexible, membrane keypad from Southco, Concordville, Pa. It holds up to 120 different user codes and can independently control ...