How to use the analog keypad breakout with Arduino

The analog keypad breakout, is designed using a network of resistors of particular values. Using this board will reduce the number of pins required for interfacing a keypad with a microcontroller or a processor as it gives a unique analog values for each button press which should just be read using an Analog in pin. Both 3×4 & 4×4 keypads can be used with the breakout. In this article we’ll see how to interface a 4×4 keypad with Arduino using the analog keypad breakout & the button pressed is displayed on the serial monitor.

Note:: You need to install the library to the Arduino IDE  before using the code

 

Continue Reading