ITEM NAME:4*4 Matrix Keypad Keyboard Module 16 Botton MCU For Arduino Atmel gN Descriptionï ¼Å¡ This 4x4 keypad module can be used in microcontrollers as a important part 4x4 4*4 Matrix Keypad Keyboard module 16 Botton mcu For Arduino atmel Stmap S1/2 16 Botton Color: Green(as pictures show) Made of high quality material, durable and compact Easy to install and convenient to operate Package Included: 1 x Membrane Switch.Easy to install and convenient to operate.