4×4 Keypad Module (Pack of 2)

Description

The 4×4 matrix keypad is a straightforward and tactile input device featuring 16 buttons arranged in a grid of four rows and four columns. It is an excellent educational tool for teaching students the concept of matrix multiplexing and row-column scanning techniques, which significantly reduce the number of microcontroller pins required for reading multiple inputs. Easily integrated with development boards like the Arduino UNO or Magic Board, it is a staple component for interactive STEM projects requiring manual data entry, such as building custom calculators, digital security locks, password-protected safes, and complex menu navigation systems.