ESP32 Color Sensor Project

This project demonstrates how to interface an ESP32 microcontroller with a TCS34725 color sensor. The color sensor is used to detect the RGB values of light and calculate color temperature and illuminance (lux).

Components Needed

• ESP32 Microcontroller
• TCS34725 Color Sensor
• Jumper Wires
• Breadboard

Circuit Setup

1.Connecting the TCS34725 to ESP32:

Connect the SDA pin of the TCS34725 to GPIO 21 on the ESP32.

Connect the SCL pin of the TCS34725 to GPIO 22 on the ESP32.

Connect the VCC and GND pins of the TCS34725 to the 3.3V and GND pins on the ESP32, respectively.

Instructions

1.setup:

Initialize serial communication at a baud rate of 115200 using Serial.begin().

Initialize the I2C communication with the TCS34725 color sensor using Wire.begin(SDA_PIN, SCL_PIN).

Check if the TCS34725 sensor is detected. If not, print an error message and stop execution.

2.operation:

In the loop() function:

• Read the raw RGB and clear (C) values from the TCS34725 sensor using tcs.getRawData().
• Print the raw RGB and clear values to the serial monitor.
• Calculate the color temperature in Kelvin and lux using tcs.calculateColorTemperature() and tcs.calculateLux().
• Print the calculated color temperature and lux values to the serial monitor.
• Add a delay of 1 second before taking the next reading.

3.considerations:

Sensor Calibration: Ensure the sensor is properly calibrated for accurate readings.

Ambient Light: Avoid exposing the sensor to direct sunlight or other strong light sources that could affect readings.

Power Supply: Ensure the ESP32 and the sensor have a stable power supply for consistent performance.

Applications

Color Detection Systems: Use in devices requiring color recognition, such as sorting machines or quality control systems.

Ambient Light Monitoring: Monitor the color temperature and brightness of ambient light in smart home systems.

Educational Projects: Learn about color sensing and light measurement with microcontrollers.

Notes

Sensor Accuracy: The accuracy of the color readings depends on proper calibration and environmental conditions.

Data Interpretation: The raw RGB values and calculated color temperature/lux can be used for various applications requiring precise light measurements.