Membrane Switch Matrix Array Keyboard Keypad Control Panel Pad DIY Kit For Arduino 1 2 3 4 5 12 16 20 Key Button 3*4 4*4 4*5
USD 0.37USD 0.52
Membrane Switch Matrix Array Keyboard Keypad Control Panel Pad DIY Kit For Arduino 1 2 3 4 5 12 16 20 Key Button 3*4 4*4 4*5