Automated Colour Sorting System Using Arduino and Optical Sensors for Industrial Applications

Industrial automation demands efficient material handling mechanisms to enhance productivity and reduce operational costs.This paper presents an automated colour sorting machine utilizing Arduino microcontroller technology integrated with optical colour sensors.The system employs a conveyor belt that transports objects through a detection zone where a TCS3200 colour sensor identifies each item's colour.Based on detected colour signatures, the Arduino controller processes sensor data and activates corresponding servo motors to divert items into designated collection bins.The proposed system achieves high-speed sorting with accuracy exceeding 95%, significantly reducing manual labour requirements and minimizing classification errors.Experimental results demonstrate effectiveness in sorting multiple colours simultaneously with minimal delay.This solution finds applications in food processing, pharmaceutical packaging, recycling industries, and quality control operations where colour-based segregation is essential.