Keypad Sensor

Sixteen keys arranged as a matrix so the whole keypad reads on eight pins instead of sixteen. The Keypad library handles scanning and debouncing, so reading a keypress is a single function call. The thin flexible membrane with adhesive backing mounts flat to an enclosure front, making it the practical choice for door locks, safes, calculators and any project needing numeric input. Sixteen keys using only eight I/O pins; Thin adhesive-backed membrane mounts flush to a panel; Works with the standard Arduino Keypad library; Sealed surface resists dust and spills