This is a Push Lock E-Switch button brick, which detects your press action. It is ideal for beginner class to test the Arduino or be your first sensor in your project. It was easy be used for Chipkit, STM32, AVR, ARM and others mirc-MCU.
Feature:
Power supply: 3.3V or 5V
3P buckled wires connector
Easy to plug and play
Large button keypad and high-quality first-class hat
Able to achieve very interesting and interactive work