1.Product Introduction

The Color Sensor is an optical sensing to recognize the surface color of an object. Support red, green, blue (RGB) three basic colors, support bright light induction, can output the corresponding specific value, restore the actual color. The onboard comes with two bright LEDs, which allows the sensor to use normally in the case of low ambient light, realizing the function of “filling light filling”.

Application reference: Color calibration device, color printer, plotter, etc.

2.Parameter Specification

Parameter	Value/Representation
Operating voltage	3.3~5V
Detection distance	3-10mm
Output protocol	I2C
Operating temperature	-30°C~+70°C
Size	3.2cm*2.4cm

3.Wiring Diagram

Hint

Expansion board is attached to esp32 controller board.

Color Sensor	ESP32
SCL	SCL
SDA	SDA
VCC	5V
GND	GND

4.Sample Code

 1#include <ACB_ColorSensor.h>//Import a library of color sensors
 2
 3#define R "red" //Define the name of the string
 4#define G "green"
 5#define B "blue"
 6
 7
 8ACB_ColorSensor colorSensor; //Create a sensor object
 9
10int red_value; //Store color sensor red light values
11int green_value;//Store color sensor green light values
12int blue_value;//Store color sensor blue light values
13
14void setup() {
15  colorSensor._Init(); //Color sensor initialization
16  Serial.begin(115200);
17}
18
19void loop() {
20    red_value = colorSensor.read(R);
21    green_value = colorSensor.read(G);
22    blue_value = colorSensor.read(B);
23    //Print color value
24    Serial.print("R:");
25    Serial.println(red_value);
26    Serial.print("G:");
27    Serial.println(green_value);
28    Serial.print("B:");
29    Serial.println(blue_value);  
30}

5.Test Result

After you successfully connect the line according to the wiring diagram and successfully upload the correct program, please turn on the LED light switch of the color sensor, and then put it on different colors. The serial port monitor will output the data of red, green and blue three primary colors.

6.Related Resources

PDF and Code

7.Get One Now

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