Designing a Wall Paint Colour Mixer Using a TCS3200 Sensor Based on Arduino Mega

Abstract

This research presents a wall paint mixing machine built using an Arduino Mega 2560 microcontroller and a TCS3200 color sensor to address the need for efficient and affordable paint production. The system utilizes CMYK inks and supports two mixing methods: one based on real-time color sensing from samples, and another using preset color compositions accessed via buttons. Performance testing compares the output accuracy of both methods, revealing that the sensor-based method yields an average error of 33.38%, which is slightly better than the button-based method's 36.31%. The lowest error using the sensor method occurs with the corn colour (11.24%), while the button method performs best with the pistachio colour (2.47%). This machine demonstrates the potential of combining hardware and colour theory to create a cost-effective, user-friendly solution for paint mixing.