Pin description: COM:Common ,VCC or GND connected to the MCU development board Up direction button:Connect to IO pin of the MCU DWN:Down direction button,Connect to IO pin of the MCU LFT: Left direction button, Connect to IO pin of the MCU RHT: Right direction button,Connect to IO pin of the MCU MID: Middle direction button, Connect to IO pin of the MCU SET: Set button, Connect to IO pin of the MCU RST: Reset button, Connect to IO pin of the MCU Note: The installation of electronic modules requires basic knowledge and requires a certain electronic professional foundation and hands-on ability. Please purchase carefully! Manual measurement, with small error. Please check size in detail before purchase. Real colors may slightly differ from the pictures, as it depends on specific monitor settings and light brightness. We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution. Package Includes: 5Pcs

About us, Professional factory, welcome to our store for more choices with best price. What we pursue is your satisfaction of our service, not just for our goods. For any reason you are unsatisfied with our product at any time, simply contact support for Exchange or refund. We will reply you about any question you ask within 24 hours. Size:25mmx41mm. Direction:up, down, left, right, and center click . Operating voltage:2.0V-9.0V. Sometimes you need a very small directional input device, This 5-way tactile switch allows for joystick-like control in a very small space.