Electronic systems can help the visually impaired. This project combines an Arduino Nano, a TCS34725 color sensor and a buzzer to assist color blind users.

TCS3200 Color Sensor & Arduino TCS3200 Color Sensor & Arduino In real-world, a color sensor can be connected with an Arduino to recognize all of the RGB as well as magenta, yellow and cyan color ...

This paper introduces an Arduino-based color-sorting conveyor belt system that automates object sorting by color. Employing a TCS3200 color sensor, an Arduino microcontroller detects red, green, and ...

You can throw a Raspberry Pi camera and OpenCV at the problem and approach it through software, or you can buy an off-the-shelf RGB sensor and wire it up to an Arduino.