Other Smartphone Accessories -Simulate 5 Key Button Module Generic Brand Highlights Simulate 5 Key Button Module Description: The AD Keyboard module allows you to use an analog port to read the five key states, except for the IO port. With the expansion board, you can use multiple buttons for interactive work. 5 buttons occupy an analog port, saving resources Analog acquisition, press the different buttons different voltage output High-quality, sensitive and durable Omron button For the platform, compatible with the sensor interface. Specification: Material: Plastic Color: As pciture show Size: Approx. 55x33mm / 2.17x1.30inch Package includes: 1 Piece AD Keyboard Five Key Module Note: Pls Allow 1-3mm error due to manual measurement difference.