Universal 4 Key Push Button Switch Module Keyboard Board for for Arduino DIY KIT Universal

【2.54MM PIN OUT】--- The 1x5 array 5 key membrane switch is GND K1 K2 K3 K4"4 PIN OUT 2.54mm
【4 button button module】--- This is a 4-button common cathode button module (when the output is low)
【Multiple Usage】 --- This 1x5 array 5 key membrane switch can be directly inserted into mega2560, it is very suitable for connecting to your Mega2560 breadboard banana pi, etc., or other MCU PLD CPU (AVR STM32 ARM C51 NRF24LE1 CC2530 MSP430 ) STM8 FPGA CPLD, etc.)
【 & 】 --- 4 Button Key Module Using high-quality electronic components and precision technology, the 4-key keyboard module has long service life and good durability.
【Wide Application】--- Time delay relay module is suitable for automatic modification, motor control, bulb, LED string, micro pump, solenoid

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