Project 11:  Arduino Color Sensor (TCS230/TCS3200)

Main Ideas:

The TCS3200 color sensor can detect a wide range of colors based on their wavelength. This sensor is can be used for color recognition/detection projects such as color matching, color sorting.

The sensor has four different types of filter covered diodes. In the 8 x 8 array of photodiodes, 16 photodiodes have Red filters, 16 have Blue filters, 16 have Green filters and the rest 16 photodiodes are clear with no filters. Each type can be activated using the S2, S3 selection inputs.

/*********   https://arduino4everyones.blogspot.com/ Color ranges  2 cm till 5 cm Main Ideas: The TCS3200 color sensor can detect a wide range of colors based on their wavelength. This sensor is can be used for color recognition/detection projects such as color matching, color sorting. The sensor has four different types of filter covered diodes. In the 8 x 8 array of photodiodes, 16 photodiodes have Red filters, 16 have Blue filters, 16 have Green filters and the rest 16 photodiodes are clear with no filters. Each type can be activated using the S2, S3 selection inputs.   *********/   // TCS230 or TCS3200 pins wiring to Arduino #define S0 2  // gray  #define S1 3  //maron #define S2 4  //yellow #define S3 5 //green #define sensorOut 6 //orange     // Capture frequencies read by the TCS230/TCS3200 Sensor int redFrequency = 0; int greenFrequency = 0; int blueFrequency = 0;   //Define the colors //red color int redColor = 0; //green color int greenColor = 0; //blue color int blueColor = 0;   void setup() {   // Setting the outputs   pinMode(S0, OUTPUT);   pinMode(S1, OUTPUT);   pinMode(S2, OUTPUT);   pinMode(S3, OUTPUT);     // Setting the sensorOut as an input   pinMode(sensorOut, INPUT);     // Setting frequency scaling to 20%   digitalWrite(S0, HIGH);   digitalWrite(S1, LOW);     // Begins serial communication   Serial.begin(9600); }   void loop() {   // Set RED (R) filtered photodiodes to be read   digitalWrite(S2, LOW);   digitalWrite(S3, LOW);   // Reading the output frequency   redFrequency = pulseIn(sensorOut, LOW);   // Remaping the value of the RED (R) frequency from 0 to 255   // You must replace with your own values. Here's an example:   // this range for 2-3 cm distance   //redColor = map(redFrequency, 137, 144, 255, 0);   redColor = redFrequency;   // Printing the RED (R) value   Serial.print(" R = ");   Serial.print(redColor);   delay(100);     // Setting GREEN (G) filtered photodiodes to be read   digitalWrite(S2, HIGH);   digitalWrite(S3, HIGH);     // Reading the output frequency   greenFrequency = pulseIn(sensorOut, LOW);   // Remaping the value of the GREEN (G) frequency from 0 to 255   // You must replace with your own values. Here's an example:   // Printing the GREEN (G) value   // this range for 2-3 cm distance   //greenColor = map(greenFrequency,  206, 212, 255, 0);   greenColor = greenFrequency;   // Printing the GREEN (G) value   Serial.print(" G = ");   Serial.print(greenColor);   delay(100);     // Setting BLUE (B) filtered photodiodes to be read   digitalWrite(S2, LOW);   digitalWrite(S3, HIGH);     // Reading the output frequency   blueFrequency = pulseIn(sensorOut, LOW);   // Remaping the value of the BLUE (B) frequency from 0 to 255   // You must replace with your own values. Here's an example:   // this range for 2-5 cm distance   //blueColor = map(blueFrequency, 96, 102, 255, 0);   blueColor = blueFrequency;               // Printing the BLUE (B) value               Serial.print(" B = ");   Serial.print(blueColor);   Serial.println("");   delay(100);   // Checks the current detected color and prints   // a message in the serial monitor   if (redColor < greenColor && redColor < blueColor) {     Serial.println("****** Red color detected *****");   }   if (greenColor < redColor && greenColor < blueColor) {     Serial.println("****** Green color detected ******");   }   if (blueColor < redColor && blueColor < greenColor) {     Serial.println("****** Blue color detected ******");   }   delay(400);   Serial.println("");