The objective of “IOT BASED FLOODDETECTION” is to help people residing near flood prone areas to know about the current status of water level in their nearby dam. This can also help them by alerting them during heavy rains and monsoon season. Also, it gives a reliable support to farmers for planning their farm according to the level of water in the dam. The proposed method is a IoT based system which uses NodeMCU as the main processor which is programmed using Arduino IDE. Ultrasonic sensor is connected with processor and some LED lights are used for signals.

As the water level increases LED’s start glowing one-by-one and a SMS is sent to mobile phones of registered contacts (among the vicinity area).

EXPANDED TECHNICAL DETAILS

Water Level Analytics

Developed for disaster prevention, this IoT node monitors water levels in flood-prone areas.

• Detection Method: Uses a Non-contact Liquid Level Sensor or a HC-SR04 ultrasonic sensor mounted at a high point. It measures the distance to the water surface continuously.
• Critical Thresholds: The firmware defines three states: "Normal," "Warning," and "Critical."

IoT Ecosystem

• Transmission: Data is sent via WiFi (ESP8266) or GSM (SIM800L) to a central server.
• User Alerts: Integrated with a "Maker Service" like IFTTT or Pushsafer. When water reaches the "Critical" level, the system triggers a phone call or a priority push notification to the user, allowing for early evacuation or property protection.