TCS34725 RGB Color Sensor Module I2C for Arduino ESP32 STM32

TCS34725 RGB Color Sensor Module with IR Filter

The TCS34725 is a high accuracy RGB color sensor module with an integrated IR blocking filter and white LED. It uses the I2C communication interface and is suitable for Arduino UNO, Arduino Nano, ESP32, STM32, Raspberry Pi and other microcontroller projects.

This module can detect Red, Green, Blue and Clear light values, making it suitable for colour identification, colour sorting, ambient light sensing and DIY automation projects.

Features

• TCS34725 RGB colour sensor IC
• Detects Red, Green, Blue and Clear light values
• Built-in IR blocking filter for improved colour accuracy
• On-board white LED for object illumination
• I2C communication interface
• Default I2C address: 0x29
• Compatible with Arduino UNO / Nano
• Compatible with ESP32
• Compatible with STM32 and Raspberry Pi
• Suitable for colour recognition and light sensing projects

Specifications

Pin Description

Arduino UNO / Nano Wiring

For basic colour reading, only VIN, GND, SCL and SDA are required. The INT and LED pins are optional.

ESP32 Wiring

Arduino Library

Recommended library: Adafruit TCS34725

In Arduino IDE:

1. Go to Sketch → Include Library → Manage Libraries
2. Search for Adafruit TCS34725
3. Install the library

Arduino UNO / Nano Example Code

#include <Wire.h>
#include "Adafruit_TCS34725.h"

Adafruit_TCS34725 tcs =
Adafruit_TCS34725(
    TCS34725_INTEGRATIONTIME_50MS,
    TCS34725_GAIN_4X
);

void setup() {

    Serial.begin(9600);

    if (tcs.begin()) {
        Serial.println("TCS34725 sensor found");
    } else {
        Serial.println("No TCS34725 found. Check wiring.");
        while (1);
    }
}

void loop() {

    uint16_t r, g, b, c;

    tcs.getRawData(&r, &g, &b, &c);

    Serial.print("Red: ");
    Serial.print(r);

    Serial.print("  Green: ");
    Serial.print(g);

    Serial.print("  Blue: ");
    Serial.print(b);

    Serial.print("  Clear: ");
    Serial.println(c);

    delay(500);
}

ESP32 Example Code

#include <Wire.h>
#include "Adafruit_TCS34725.h"

Adafruit_TCS34725 tcs =
Adafruit_TCS34725(
    TCS34725_INTEGRATIONTIME_50MS,
    TCS34725_GAIN_4X
);

void setup() {

    Serial.begin(115200);

    Wire.begin(21, 22);

    if (tcs.begin()) {
        Serial.println("TCS34725 sensor found");
    } else {
        Serial.println("No TCS34725 found. Check wiring.");
        while (1);
    }
}

void loop() {

    uint16_t r, g, b, c;

    tcs.getRawData(&r, &g, &b, &c);

    Serial.print("Red: ");
    Serial.print(r);

    Serial.print("  Green: ");
    Serial.print(g);

    Serial.print("  Blue: ");
    Serial.print(b);

    Serial.print("  Clear: ");
    Serial.println(c);

    delay(500);
}

Example Applications

• Colour recognition system
• Colour sorting machine
• DIY colour detector
• Robot colour sensing
• RGB measurement
• Ambient light sensing
• Smart lighting projects
• Educational Arduino projects
• ESP32 automation projects

Package Includes

• 1 x TCS34725 RGB Color Sensor Module
• 1 x Pin Header

Note:
Actual PCB colour, component arrangement or printing may vary slightly between production batches. Please refer to the product images for the current module version.