8 LED 4x4 Push Button Switch 16 Keys Matrix Independent Keyboard Module For AVR ARM STM32

Description: ? 4 x 4 Matrix Push Buttons 4 independence push buttons 8 LEDS Size: 50 x 60mm ? Package Included: ? 1 x 8 LED 4 x 4 push buttons matrix keyboard 4 x Pillars 4 x Screws