4×4 matrix keypad membrane

Description

Description Show Reviews Enter your secret code using this numeric matrix keypad. It features 12 buttons laid out in a classic telephone-style 3-row-by-4-column grid. Built from a thin, flexible membrane material with a peel-off adhesive backing, it can be mounted onto almost any surface. Because the keys are wired in a matrix configuration, you only need 7 microcontroller pins to read input from the entire pad: 3 for the columns and 4 for the rows. Specifications Cable Length: 3.3 inch Keypad Width: 2.7 inch Keypad Length : 3.0inch Number of keys: 16 Matrix: 4×4 Related Links ArduinoKeypad Tutorial 0 Reviews Hide Reviews Show Reviews