This paper presents the implementation of design of H-bridge using 4N25 isolated driver for stepper motor which is being used in automated spray-painting robot designed for industrial applications. The robot is capable of performing complex paint jobs on various surfaces with high precision and efficiency. The robot’s programming allows for customizable settings to achieve desired paint thickness, coverage, and texture. The system utilizes advanced sensors to detect and adjust for variations in surface contours, ensuring a uniform coat of paint. The robot is equipped with a self-cleaning mechanism, reducing the need for manual maintenance. The novelty of work lies in design and simulation of the circuit using proteus software before building the physical prototype. The H-bridge driver with isolated IC is suitable for such heavy application from microcontroller isolation point of view. Overall, this automated spray-painting robot offers a reliable and cost-effective solution for large-scale painting projects in manufacturing and other industrial settings.

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