Water is a vital resource, and its efficient usage and management have become increasingly important due to rising demand and limited supply. One of the common issues in households, apartments, commercial buildings, and agricultural setups is the lack of awareness of water tank levels, which often leads to problems such as overflow, dry running of pumps, and unnecessary energy consumption. Manual checking of water levels is not only inefficient but also impractical in larger or remote setups.
To address this challenge, a Smart Water Tank Level Indicator with Real-Time Monitoring system is introduced. This system uses modern sensor technology and Internet of Things (IoT) concepts to automatically measure the water level in a tank and provide real-time updates to users. By integrating a water level sensor with a microcontroller like Arduino Uno and a Wi-Fi module (e.g., ESP8266), the system can collect, process, and transmit tank level data to a cloud platform.
Users can view the water level status anytime through a mobile app or web interface, receive alerts when the tank is full or low, and automate pump control accordingly. The system also features a local display unit (LCD) and can be enhanced with additional modules like buzzer alerts, relay control for pumps, and battery backup for uninterrupted operation.
This smart solution offers several benefits including remote accessibility, energy efficiency, water conservation, and automation, making it highly applicable in smart homes, commercial complexes, and remote agricultural environments. The system helps in reducing water wastage, minimizing human intervention, and ensuring the availability of water as and when required.

Component Used:
- Water Level Sensor
- Arduino Uno or ESP8266
- LCD Display
- Buzzer
- Wi-Fi Module (ESP8266)
- Mobile App (e.g., Blynk)
- Power Supply
- Jumper Wires
- Breadboard
- Relay Module