Fényérzékeny ellenállás fényérzékelő analóg szürkeárnyalatos érzékelő elektronikus tábla vonalkereső modul Arduino barkácsoláshoz
Photosensitive resistor Light Sensor Analog Grayscale Sensor Electronic Board Line finder tracking module For Arduino DIY
Product description
The grayscale sensor is an analog sensor It can be used in combination with the Arduino sensor expansion board v50 to sense the different colors of the ground or the desktop and generate corresponding signals It can realize interactive works related to color, and can also be used as a tour of the patrol car Grayscale recognition of the field sensor or soccer robot The power supply needs to be the same as the controller, usually 33V or 5V
Specifications
Working voltage: 33V or 5V
Working current : < 20mA
Operating temperature range: -10 ° C ~ 70 ° C
Detection resolution: 10%
Interface type: analog signal output
Size: 24mm x 21mm
Weight: 3g
Interface definition
S:Signal output
:Power supply (VCC)
-:Ground (GND)
Instructions
working principle
The gradation sensor comprises a white high-brightness light-emitting diode and a photoresistor Since the light returned by the light-emitting diode on different gradation papers is different, the photoresistor receives the returned light, and the photoresistor is different according to the intensity of the light The resistance values are also different, thereby realizing the test of the gray value
Programming principle
The gray level sensor has three pins, which are the power supply positive Vcc, the power supply ground GND, and the signal end S In actual use, the sensor can be directly connected to the analog interface of the Arduino controller, for example, the analog port A0, after the Arduino is powered on, The sensor white highlight LED lights up, the sensor button is placed on different gray paper, the data is read by the AD conversion of the Arduino controller, and then the measured analog quantity is printed through the serial port
Connection diagram
The S port is connected to the analog input pin of the controller Connect 5V and GND to the 5V and GND of the power supply, respectively
 
Sample program
Connect the grayscale sensor to the Arduino UNO controller according to the program and observe the value of the serial port output under different gray values
Void setup()
{
     Serialbegin(9600); //Open the serial port and set the serial port baud rate to 9600bps
}
Void loop()
{
     Int val;
     Val=analogRead(0); //Connect the grayscale sensor to the analog interface0
     Serialprint("Grayscale is ");//Print the analog value read through the serial port
     Serialprintln(val, DEC); / / print the analog value read through the serial port
     Delay(100);
}
Program effect
When you detect different gray values, feedback back to the measured value at this time As shown in the figure below, this figure is a schematic diagram of the data returned by the serial port when the gray level sensor detects 85% of the gray value
4000103388083 - suq