Item Type: Grayscale Sensor <br>Working Voltage: 3.3V or 5V <br>Working Current: <20mA <br>Operating Temperature Range: -10℃-70℃ <br>Detection Resolution: 10% <br>Interface Type: Analog signal output <br>Board Size: Approx. 24 x 21mm / 0.9 x 0.8in <br>Interface Definition: <br>OUT: Signal Output <br>VCC: Power (VCC) <br>GND: Ground (GND)<br>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. <br>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. <br>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. <br>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. <br>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.The power supply needs to be consistent with the controller, usually 3.3V or 5V.1 x Grayscale Sensor