Arduino keypad 4 Button Key Module Switch Keyboard for UNO MEGA2560 Breadboard

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Arduino keypad 4 Button Key Module Switch Keyboard for UNO MEGA2560 Breadboard

Can be inserted directly into Arduino uno mega2560,Ideal for linking up to your  Arduino UNO Mini Nano Mega2560 Breadboard etc,or others MCU ( AVR STM32 ARM PIC AT89C51 STC MSP430 STM8 FPGA CPLD etc.)
4-button Common Cathode key module .
2 » GND K1 K2 K3 K4″ 4 PIN OUT  2.54mm
3 Size: 12.7MM x 33MM.
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