The 4×4 / 3×4 Matrix Keypad Module is a durable, easy-to-use input device designed for Arduino, Raspberry Pi, STM32, ESP32, single-board computers, and robotics projects. With its flat, compact design, this keypad provides a reliable solution for numeric and character input in DIY electronics, circuit prototyping, and embedded systems.
Featuring 12-key (3×4) and 16-key (4×4) configurations, it is suitable for multiple applications such as password entry systems, menu navigation, security locks, and robotics control panels. The high-quality blue and red push-buttons ensure long-lasting performance, while the pin header interface makes it easy to integrate into your projects without soldering.
Completely battery-free and assembly-free, this keypad is ready to use right out of the box, making it a must-have accessory for hobbyists, students, and professional engineers.
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