FP: Natalie Weaver and Heeyoun Lee

https://youtu.be/zeP3D_7sW2A

Message: The Color Blue | Medium: An RGB LED

Objective

Transmit "THE COLOR BLUE" using an RGB LED.

Overview

  • This project involves using the TCS34725 color sensor to detect the color blue. Once detected, a signal is sent to an RGB LED to recreate and display the detected color. The project's success relies on the accurate detection and reproduction of the blue color.

Selected Message and Medium

  • Message: The color blue reflected from a piece of paper or a blue sky
  • Medium: An RGB LED

Project Steps

1. Color Detection Process

  • Describe the Detection Method:
    • The TCS34725 color sensor is used to detect the color blue:
      • Features include RGB and clear light sensing elements and an IR blocking filter for accurate color measurement.
      • It has a high dynamic range with adjustable integration time and gain.
    • Upon detecting the color blue, the sensor triggers the next step in the communication process.

2. Signal Transmission

  • Method Details:
    • After detecting blue, the sensor sends a signal to an encoding device, such as a microcontroller, which processes this detection.
    • The encoded signal corresponds to the command to activate the RGB LED to display blue.

3. Display and Decoding Process

  • Describe the Display Method:
    • The RGB LED, upon receiving the signal, is configured to emit the color blue by setting the following color intensities:
      • RED: 0
      • GREEN: 0
      • BLUE: 255 (ensuring full brightness for accurate recreation of blue)
    • This process effectively decodes the signal back into the visual display of the color blue.

Challenges and Solutions

  • Challenges Encountered:
    • Ensuring that the sensor accurately detects the color and that the signal is correctly interpreted by the RGB LED for proper display.
  • Solutions Implemented:
    • Calibration of both the sensor and the LED to ensure that environmental conditions do not interfere with color detection and display accuracy.

Evaluation

  • Accuracy Assessment:
    • Consistently verify the system's ability to detect and reproduce the color blue through testing in various lighting conditions.

Reflection

  • Lessons Learned:
    • Insights into how detection and subsequent signaling processes work, including the importance of precise calibration.
  • Improvement Ideas:
    • Enhance signal processing between the sensor and RGB LED to speed up the response and improve reliability in diverse settings.