1、ANALOG SENSOR: The grayscale sensor is an analog sensor, used in conjunction with the sensor expansion board v5.0, can perceive different colors and generate corresponding signals. 2、GRAY VALUE TEST: Including a white high brightness LED and a photoresistor, according to the strength of the light, to achieve the gray value test. 3、3 PIN DESIGN: With 3 pins, which are power positive VCC, power ground GND, signal terminal OUT, which can be directly connected to the analog interface of the controller. 4、MULTIPLE USAGES: Can realize interactive works related to color, and can also be used as a line following sensor or a football robot field gray recognition. 5、EXAMPLE PROGRAM: Connect the grayscale sensor to the controller according to the program, and observe the value output by the serial port under different grayscale values. <p class="wang-edit-text"><p class="wang-edit-text">Item Type: Grayscale SensorWorking Voltage: 3.3V or 5VWorking Current: &lt;20mAOperating Temperature Range: -10℃-70℃Detection Resolution: 10%Interface Type: Analog signal outputBoard Size: Approx. 24 x 21mm / 0.9 x 0.8inInterface Definition: OUT: Signal OutputVCC: Power (VCC)GND: Ground (GND)<style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Grayscale Sensor