4×4 Matrix Keypad Membrane Switch – 16 Keys

Description Easy-to-use 16-button membrane keypad for Arduino, ESP32, Raspberry Pi, and DIY electronics projects. This 4×4 matrix keypad provides a compact and reliable input solution for password locks, calculators, access control systems, menus, and interactive projects. �� Features ✅ 16 tactile keys (0-9, A-D, *, #)✅ 4×4 matrix design✅ Thin and lightweight membrane construction✅ Self-adhesive backing for easy mounting✅ Simple interface with microcontrollers✅ Flexible ribbon cable connection✅ Durable and responsive keys �� Specifications Key Layout: 4×4 Matrix Number of Keys: 16 Interface: 8-pin ribbon cable Type: Membrane Keypad Operating Voltage: Compatible with 3.3V and 5V systems Dimensions: Approx. 70 × 77 mm Cable Length: Approx. 85 mm �� Package Includes 1 × 4×4 Matrix Keypad Membrane Switch (16 Keys) �� Applications �� Electronic door locks�� Robotics projects�� DIY calculators�� Menu navigation systems�� Home automation�� Arduino & ESP32 learning projects