Description
The 4×4 Membrane Switch Matrix Keypad is a lightweight, durable, and easy-to-use input device designed for microcontroller and embedded system applications. It features 16 keys (arranged in 4 rows and 4 columns), making it ideal for projects that require user input such as password entry, menu navigation, calculators, and robotics.
The keypad uses a matrix wiring design, which reduces the number of microcontroller pins needed for connection. Its flexible membrane construction makes it slim, portable, and perfect for DIY electronics, Arduino projects, and industrial control systems.
Features
Ultra-thin design & adhesive backing provides easy integration to any project Excellent price-performance ratio Easy communication with any microcontroller
5 pins 2.54mm pitch connector, 4×3 type 12 keys. Sticker can peel off for adhesive mounting. Used widely in industrial and home electronic equipments, instrument, etc. This allows a microcontroller to ‘scan’ the 7 output pins to see which of the 12 buttons is being pressed
Specifications
Keypad Type: 4×4 Matrix Membrane Switch
Number of Keys: 16 (0–9, A–D, *, #) Keypad Layout: 4 Rows × 4 Columns
Operating Voltage: 3.3V – 5V DC Interface: Matrix (8-pin connection)
Cable Length: ~85mm (8-pin ribbon cable with connector)
Material: Flexible membrane with adhesive backing
Keypad Dimensions (Approx.): 70mm × 78mm × 87mm
Operating Temperature: -20°C to +70°C
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