Introduction

The TCS34725 I2C arduino color sensor has a high sensitivity, wide dynamic range, and includes an IR blocking filter making it an ideal color sensing solution for use under varied lighting conditions. The TCS34725 color sensor also includes four ultra-bright LEDs to allow the sensor to work without external light resources.
The module works via your Arduino’s I2C bus and includes PH2.0-4P and XH2.54 (breadboard) interfaces to meet a range of user scenarios.

Specification

• Operating Voltage: 3.3~5V
• Operating Current: 65 uA
• Detection Range: 3-10 mm
• The Clock Frequency: 0-400 KHZ
• Interface: IIC interface
• IIC Address: 0x29
• Temperature Range: - 30 ℃ ~ + 70 ℃
• Feet inches: 18.5 * 23 mm/ 0.73 * 0.9 inches
• Weight: 12 g

Board Overview

Note:

1. I2C address: 0x29
2. XH2.54 interface (BreadBoard Compatible) need soldering.
3. The paper of the blocking filter could be teared out.

Tutorial

In this tutorial, we'll detect the specimen RGB value, and simulate it with RGB LEDs

Requirements

• Hardware

  • DFRduino UNO (or similar) x 1
  • RGB LED Module
  • M-M/F-M/F-F Jumper wires

• Software

  • Arduino IDE (Version requirements: V1.6.x), [https://www.arduino.cc/en/software| Click to Download Arduino IDE from Arduino®]

Note: The sensor should be placed above the specimen, 3 ~ 10 mm

Connection Diagram

Sample Code

Install the Arduino Library Download here. How to install Libraries in Arduino IDE

/*!
 * @file  colorview.ino
 * @brief Gets the ambient light color
 * @copyright   Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
 * @license     The MIT License (MIT)
 * @author      PengKaixing(kaixing.peng@dfrobot.com)
 * @version     V1.0.0
 * @date        2022-03-16
 * @url         https://github.com/DFRobot/DFRobot_TCS
 */
#include "DFRobot_TCS34725.h"

DFRobot_TCS34725 tcs = DFRobot_TCS34725(&Wire, TCS34725_ADDRESS,TCS34725_INTEGRATIONTIME_24MS, TCS34725_GAIN_1X);
void setup() 
{
  Serial.begin(115200);
  Serial.println("Color View Test!");

  while(tcs.begin() != 0)
  {
    Serial.println("No TCS34725 found ... check your connections");
    delay(1000);
  }
}

void loop() {
  uint16_t clear, red, green, blue;
  tcs.getRGBC(&red, &green, &blue, &clear);
  tcs.lock();  
  Serial.print("C:\t"); Serial.print(clear);
  Serial.print("\tR:\t"); Serial.print(red);
  Serial.print("\tG:\t"); Serial.print(green);
  Serial.print("\tB:\t"); Serial.print(blue);
  Serial.println("\t");
  
  // Figure out some basic hex code for visualization
  uint32_t sum = clear;
  float r, g, b;
  r = red; r /= sum;
  g = green; g /= sum;
  b = blue; b /= sum;
  r *= 256; g *= 256; b *= 256;
  Serial.print("\t");
  Serial.print((int)r, HEX); Serial.print((int)g, HEX); Serial.print((int)b, HEX);
  Serial.println();
}

Expected Results

FAQ

More Documents

• Schematic
• Layout
• TCS34725 Datasheet
• TCS35725 Arduino Library (Github)