🌊 Water Level Observer

Water Level Observer is an automated IoT-based system designed to monitor water tank levels in real-time. It aims to solve common household and industrial water management issues, such as water wastage due to tank overflow and pump damage due to dry running.

🚀 Key Features

• Real-time Monitoring: Continuously measures the distance to the water surface using ultrasonic technology.
• Automatic Pump Control:
  • Turns OFF the pump when the tank is full (preventing overflow).
  • Turns ON the pump when water levels are critically low.
• Visual Indicators: Uses LEDs (Red/Green) or an LCD display to show current status.
• Dry Run Protection: Ensures the pump does not run when there is no water to pump.
• Cost-Effective: Built using affordable, off-the-shelf components.

🛠️ Hardware Requirements

• Microcontroller: Arduino Uno / Nano / ESP8266
• Sensor: HC-SR04 Ultrasonic Sensor
• Actuator: Relay Module (5V/12V)
• Display: 16x2 LCD (I2C) or Simple LEDs
• Power: 5V/12V Power Supply
• Wiring: Jumper wires and Breadboard/PCB

🔌 Circuit Logic

1. The Ultrasonic Sensor emits sound waves to calculate the distance to the water level.
2. The Microcontroller processes this distance into a percentage (0% to 100%).
3. Based on the percentage:
   • If Level < 20%: Relay triggers Pump ON.
   • If Level > 90%: Relay triggers Pump OFF.

💻 Tech Stack

• Language: C++ (Arduino)
• IDE: Arduino IDE
• Libraries Used:
  • NewPing (For efficient sonar reading)
  • LiquidCrystal_I2C (For LCD display)

⚙️ How to Run

1. Clone this repository:

   git clone [https://github.com/denethSaputhanthri/Water-Level-Observer.git](https://github.com/denethSaputhanthri/Water-Level-Observer.git)

2. Open the .ino file in the Arduino IDE.
3. Install the required libraries via the Library Manager.
4. Connect your Arduino to the PC and select the correct Board and COM Port.
5. Upload the code.
6. Assemble the circuit according to the pin definitions in the code.