Smart Non-contact Water dispenser

Product Overview

Smart Non-contact Water dispenser is an automated water dispensing system that eliminates the need to touch the tap. By using ultrasonic technology, it detects the presence of a glass or hand and automatically opens the valve. This is the perfect solution for hygienic, hands-free water access in offices, schools, and homes.

How It Works

1. Detection: An Ultrasonic Sensor is mounted near the tap to monitor for objects (like a hand or a glass).
2. Processing: The Arduino Nano detects when an object is within a few centimeters.
3. Mechanical Action: The Servo Motor, which is physically connected to the tap handle via a linkage/string, pulls the handle up to start the water flow.
4. Auto-Shutoff: As soon as the glass is removed, the sensor triggers the servo to release the handle, stopping the water immediately to prevent wastage.

Key Features

* 100% Touchless Operation: Prevents the transfer of bacteria and viruses from the tap surface.
* Water Saving: Precisely controls the flow and shuts off instantly when the glass is removed.
* Retrofit Design: Can be attached to almost any standard water jar or container.
* Portable & Rechargeable: Uses a high-quality 3.7V Li-ion battery with a USB charging module, making it independent of wall outlets.

Technical Specifications
* Microcontroller: Arduino Nano
* Sensor: HC-SR04 Ultrasonic Sensor
* Actuator: High-Torque Servo Motor
* Power: 3.7V Rechargeable Battery
* Charging: TP4056 Module (with LED charging indicators)
* Control: Physical On/Off Toggle Switch