Seeedstudio Grove Rotary Angle Sensor (P) Module Compatible with Grove Interface
What does P mean? P is for panel mount in this product. The potentiometer twig produces analog output between 0 and Vcc (5V DC with Seeeduino) on its D1 connector. The D2 connector is not used. The angular range is 300 degrees with a linear change in value. The resistance value is 10k ohms perfect for Arduino use. This may also be known as a rotary angle sensor.