This universal 4×4 membrane keypad is a compact, low-profile input device featuring 16 tactile keys arranged in a matrix format. Designed for microcontroller-based projects like Arduino, Raspberry Pi, and STM32, it includes dedicated START and STOP buttons—ideal for menu navigation, password entry, robotic control, and embedded HMI systems.
Features:
• 4×4 matrix configuration (4 rows × 4 columns)
• 16 keys, including numeric (0–9), function keys, START and STOP
• Flexible membrane design – lightweight and durable
• Self-adhesive back for easy mounting on panels or enclosures
• Simple interface – connects directly via 8-pin header
• Compatible with most Arduino, ESP32, AVR, PIC, and ARM boards
• Low power consumption
