RGB Color Sensor

 RGB Color Sensor

Abstract

The Coloris RGB colour sensor is a versatile device designed to detect the colour of any given surface. It incorporates a unique feature allowing users to illuminate a surface with a specified colour using RGB LED by providing custom red (R), green (G), and blue (B) values. The core concept of the project is based on the principle that coloured objects reflect their specific colour and absorb others. The device achieves colour detection by illuminating a surface and analyzing the reflected colour light. The Coloris sensor is built around an ATMega microcontroller, utilizing multiple Light-Dependent Resistors (LDRs) for accurate colour sensing.

Upon receiving input from an unknown coloured surface, the Coloris sensor outputs results in the RGB colour model format, highlighting the dominating colour among red, green, and blue. Additionally, the device provides a visual representation of the RGB colour mixture using a single RGB LED and a 16*2 LCD Display.

Task

1. Colour Sensing:  The sensor accurately senses and outputs the colour of a given surface.

2. Calibration:  Users can perform a calibration stage before initiating the sensing process, ensuring precise colour detection.

3. RGB LED Illumination:  The device includes a mode enabling users to illuminate a surface with a specific colour by setting custom red, green, and blue values.

Specifications

• The sensor should contain

1.     a LDR

2.     a keypad

3.     an LCD

4.     PCBs

5.     enclosure

Project GitHub Link: https://github.com/MovindiM/RGB-Colour-Sensor

Solidwork Design

 

 PCB Design

Physical Prototypes


My Contribution To This Project

During the initial stages of the project, I took a leading role in the physical implementation work. My primary contribution focused on the design of the printed circuit board (PCB) using both Altium and EasyEDA. This involved creating a robust and efficient PCB layout to ensure seamless integration of components within the Coloris RGB colour sensor. For a detailed view of my work, you can access the GitHub link containing the repository of my contributions.https://github.com/MovindiM/RGB-Colour-Sensor/tree/master

 


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