4 x 4 Matrix Array 16 Keys 4*4 Switch Keypad Keyboard Module for Arduino

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4 x 4 Matrix Array 16 Keys 4*4 Switch Keypad Keyboard Module for Arduino NEW

4 x 4 Matrix Array 16 Keys 4*4 Switch Keypad Keyboard Module for Arduino

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16 key 4x4 Matrix 0-9 *# 1-4 keyboard keypad data entry arduino Button 39g 875