The review paper presents an overview of non-microcontroller-based automatic tap systems. In recent years, automation has become a part of modern life, especially in improving hygiene and reducing wastage of natural resources such as water. One of the most common and effective examples of such automation is the Automatic  ater Tap. It is a touchless system that automatically releases water when a user’s hand is detected near the tap and stops the flow once the hand is removed. This system uses sensors (such as infrared or ultrasonic) to detect the presence of an object, and a microcontroller to control a solenoid valve that regulates the water flow. The main aim of developing this project is to promote contactless operation, which not only ensures better hygiene but also helps in saving water by avoiding unnecessary flow.
Such systems are widely used in public places, hospitals, restaurants, and homes to maintain cleanliness and conserve water resources. The project also demonstrates the application of embedded systems and sensor-based automation in real-world problems. Through this project, we learn the integration of electronic sensors, microcontrollers, and actuators to build an efficient and user-friendly system. It is a practical implementation of automation principles that combines both hardware and software to achieve an intelligent and eco-friendly solution.