Omar Nour Eldin Mohamed • Posted by bangwennext

Published December 27, 2022

Color detector

Detect the color

IntermediateProtip126

Things used in this project

Hardware components

Arduino UNO

TCS3200

power supply (12 v)

Alphanumeric LCD, 16 x 2

Breadboard (generic)

Single Turn Potentiometer- 10k ohms

Hand tools and fabrication machines

Soldering iron (generic)

Solder Wire, Lead Free

Story

In this project we are going to interface TCS3200 color sensor with Arduino UNO. TCS3200 is a color sensor which can detect any number of colors with right programming. TCS3200 contains RGB (Red Green Blue) arrays. As shown in figure on microscopic level one can see the square boxes inside the eye on sensor. These square boxes are arrays of RGB matrix. Each of these boxes contain Three sensors, One is for sensing RED light intensity, One is for sensing GREEN light intensity and the last in for sensing BLUE light intensity.

Each of sensor arrays in these three arrays are selected separately depending on requirement. Hence it is known as programmable sensor. The module can be featured to sense the particular color and to leave the others. It contains filters for that selection purpose. There is forth mode that is no filter mode. With no filter mode the sensor detects white light.

Components Required

Hardware: ARDUINO UNO, power supply (5v), LED, JHD_162ALCD (16*2LCD), TCS3200 color sensor.

Software: ARDUINO IDE (ARDUINO nightly).

Circuit Diagram and Working Explanation

In 16x2 LCD there are 16 pins over all if there is a back light, if there is no back light there will be 14 pins. One can power or leave the back light pins. Now in the 14 pins there are 8 data pins (7-14 or D0-D7), 2 power supply pins (1&2 or VSS&VDD or GND&+5v), 3rd pin for contrast control (VEE-controls how thick the characters should be shown), and 3 control pins (RS&RW&E)

In the circuit, you can observe I have only took two control pins. The contrast bit and READ/WRITE are not often used so they can be shorted to ground. This puts LCD in highest contrast and read mode. We just need to control ENABLE and RS pins to send characters and data accordingly. [Also check: LCD interfacing with Arduino Uno]

The connections which are done for LCD are given below:

PIN1 or VSS to ground

PIN2 or VDD or VCC to +5v power

PIN3 or VEE to ground (gives maximum contrast best for a beginner)

PIN4 or RS (Register Selection) to PIN8 of ARDUINO UNO

PIN5 or RW (Read/Write) to ground (puts LCD in read mode eases the communication for user)

PIN6 or E (Enable) toPIN9 of ARDUINO UNO

PIN11 or D4 to PIN7 of ARDUINO UNO

PIN12 or D5 to PIN11 of ARDUINO UNO

PIN13 or D6 to PIN12 of ARDUINO UNO

PIN14 or D7 to PIN13 of ARDUINO UNO

The connections which are done for color sensor are given below:

VDD to +5V

GND to GROUND

OE (output Enable) to GND

S0 to UNO pin 2

S1 to UNO pin 3

S2 to UNO pin 4

S3 to UNO pin 5

OUT to UNO pin 10

Code

Untitled file

int OutPut= 10;//naming pin10 of uno as output


unsigned int frequency = 0;


 


#include <LiquidCrystal.h>


// initialize the library with the numbers of the interface pins


LiquidCrystal lcd(8, 9, 7, 11, 12, 13);//RS,EN,D4,D5,D6,D7


 


void setup()


{


                // set up the LCD's number of columns and rows


                lcd.begin(16, 2);


 


                pinMode(2, OUTPUT);


                pinMode(3, OUTPUT);//PINS 2, 3,4,5 as OUTPUT


                pinMode(4, OUTPUT);


                pinMode(5, OUTPUT);


                pinMode(10, INPUT);//PIN 10 as input


 


                digitalWrite(2,HIGH);


                digitalWrite(3,LOW);//setting frequency selection to 20%


}


void loop()


{


                lcd.print("R=");//printing name


                digitalWrite(4,LOW);


                digitalWrite(5,LOW);//setting for RED color sensor


                frequency = pulseIn(OutPut, LOW);//reading frequency


                lcd.print(frequency);//printing RED color frequency


                lcd.print("  ");


                lcd.setCursor(7, 0);//moving courser to position 7


                delay(500);


               


               lcd.print("B=");// printing name


                digitalWrite(4,LOW);


                digitalWrite(5,HIGH);// setting for BLUE color sensor


                frequency = pulseIn(OutPut, LOW);// reading frequency


                lcd.print(frequency);// printing BLUE color frequency


                lcd.print("  ");


                lcd.setCursor(0, 1);


                delay(500);


               


               lcd.print("G=");// printing name


                digitalWrite(4,HIGH);


                digitalWrite(5,HIGH);// setting for GREEN color sensor


                frequency = pulseIn(OutPut, LOW);// reading frequency


                lcd.print(frequency);// printing GREEN color frequency


                lcd.print("    ");


                lcd.setCursor(0, 0);


                delay(500);        


}

Credits

Omar Nour Eldin Mohamed

Posted by

bangwennext

Color detector

Things used in this project

Hardware components

Hand tools and fabrication machines

Story

Components Required

Circuit Diagram and Working Explanation

Schematics

color-sensor-circuit_UdbeMwnzfR.gif

Code

Untitled file

Credits

Comments

Embed the widget on your own site

Color detector

Color detector

Things used in this project

Hardware components

Hand tools and fabrication machines

Story

Components Required

Circuit Diagram and Working Explanation

Schematics

color-sensor-circuit_UdbeMwnzfR.gif

Code

Untitled file

Credits

Comments

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