Arduino 3x4 Keypad 4×3 Matrix 12 Keys Membrane Switch Keypad classroom whiteboard Scope of application: polishing

Scope of application: polishing

Low profile to save space

Versatile Compatibility: Drives 4-wire

1 x 12V Piezo Alarm Speaker

Arduino 3x4 Keypad 4×3 Matrix 12 Keys Membrane Switch Keypad classroom whiteboard Scope of application: polishingThis Arduino 43 Matrix 12 keys Membrane Switch Keypad is high quality soft touch feeling button keypad with 100 million life stroke lifespans and good resistance to environmental conditions. This 43 Key Matrix Membrane Switch Keypad is a high quality product at very low cost for your application needs. This 12 button keypad provides a useful human interface component for microcontroller projects. Convenient adhesive backing provides a simple way to