The TCS34725 Color Sensor RGB with IR Filter I2C Interface CJMCU-34725 is a high-accuracy digital color sensing module manufactured by AMS, designed for precise RGB and clear light detection in embedded systems and electronics projects. This sensor features an integrated IR-cut filter that significantly reduces infrared light interference, ensuring accurate and consistent color measurements under different lighting conditions. Due to its reliability and ease of use, the TCS34725 RGB color sensor is widely used in Arduino, Raspberry Pi, ESP32, ESP8266, and other microcontroller-based projects in Bangladesh.

The TCS34725 color sensor module uses advanced photodiode arrays for red, green, blue, and clear light channels, each providing 16-bit resolution output. Communication is handled through a standard I2C interface, making wiring simple and reducing pin usage on microcontrollers. Adjustable integration time and gain settings allow fine-tuning for low-light or high-brightness environments, making the CJMCU-34725 suitable for both indoor and outdoor applications.

Features:

• Accurate RGB and clear light detection with 16-bit resolution

• Integrated IR blocking filter for improved color accuracy

• High sensitivity with wide dynamic range for varying light conditions

• I2C digital interface for simple and reliable communication

• Adjustable integration time for precise light sampling

• Programmable gain control for low-light and bright-light environments

• Low power consumption suitable for battery-powered projects

• Interrupt output for threshold-based or event-driven color detection

• Fully compatible with Arduino, Raspberry Pi, ESP32, ESP8266, and other I2C-enabled controllers

Specifications:

• Sensor Model: TCS34725

• Manufacturer: AMS

• Operating Voltage: 2.7V to 3.6V (typically 3.3V)

• Operating Current: Approx. 235 µA

• Sleep Mode Current: Approx. 2.5 µA

• Color Channels: Red, Green, Blue, Clear

• Resolution: 16-bit (0 to 65,535 per channel)

• Interface Type: I2C

• Default I2C Address: 0x29

• Integration Time: 2.4 ms to 614 ms (adjustable)

• Gain Settings: 1x, 4x, 16x, 60x

• Board Type: CJMCU-34725 development module

Pin Configuration:

• VIN: Power input (3.3V recommended)

• GND: Ground

• SDA: I2C data line

• SCL: I2C clock line

• INT: Interrupt output pin (optional use)

How the Sensor Works:

• The photodiode array captures red, green, blue, and clear light components

• The integrated IR filter blocks unwanted infrared light

• Internal ADC converts light intensity into 16-bit digital values

• Data is transmitted to the microcontroller via I2C

• Software processes RGB and clear values to determine color information

How to Use:

• Power the module with a stable 3.3V supply

• Connect SDA and SCL pins to the microcontroller I2C bus

• Initialize the sensor using an I2C-compatible library

• Configure integration time and gain based on ambient light

• Read RGB and clear channel values via I2C

• Apply calibration for accurate color matching if required

Applications:

• Arduino and Raspberry Pi color detection projects

• Color sorting and identification systems

• Robotics and object color recognition

• Ambient light sensing and display brightness control

• Industrial automation and quality inspection

• Educational STEM and electronics learning kits

• Smart lighting and IoT color-based applications

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