5V Button Cap Keypad 3x4 Module Board

Feature The module has 12 push buttons You can make usual keypuds for enter numbers symbols or navigate and selections in the program There are pull up resistors of different values for each button This makes it possible to connect all the 12 keys to taking only one analog port of the microcontroller The button consists of two parts a cap which can be applied to any character and a transparent cover which can prevent blurring of the text and add light Connection After connecting power to the module and pressing at least one key contact at OUT will stress the appropriate level Conformity stresses the buttons pressed you can find out how on the board and in the table below values are valid out when powered from 5v Package includes 1 x Button Keypad 3x4 module