Punch in your secret key into this numeric 4×4 16 Key Membrane Switch Keypad has 16 buttons, arranged in a 4×4 grid. It’s made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into a matrix, so you only need 8 micro controller pins (4-columns and 4-rows) to scan through the pad. Features: Ultra-thin design & adhesive backing provides easy integration to any project Excellent price-performance ratio Easy communication with any micro controller Used widely in industrial and home electronic equipment, instrument, etc. Flexible Can be attached on any surface Only 8 micro-controller pins are needed to access 16 buttons Specifications: Voltage(V): DC 35V Current(mA): 100 Contact Resistance: 500Ω Insulation Spec: 100MΩ Key Operating Force: 150-200N Dielectric Strength: 250VRms Rebound time: 1 (ms) Operation Temperature: -20 to 40 °C Mount Style: Self-Adherence Length (mm): 69.2 Width (mm): 105 Height (mm): 0.8 Cable Length (mm): 86 Connector: Dupont 8 pin Weight (gm): 9 Package Includes: 1 x 4×4 Switch 16 Keypad Keyboard for Arduino
