A GSM-based rain indicator is a system designed to detect rainfall and send notifications or alerts via SMS using GSM (Global System for Mobile Communications) technology. This system is commonly used for agricultural, weather monitoring, and flood management applications.
• Rain Detection: The primary function of the system is to detect rainfall, often using a rain sensor, and send alerts to a mobile phone or predefined numbers.
• Remote Monitoring: It allows users to monitor weather conditions remotely, especially in areas where manual monitoring is not feasible.
• Rain Sensor: The system uses a rain sensor (such as a tipping bucket or resistive sensor) that detects the presence and amount of rainfall. The sensor typically converts rainfall into an electrical signal.
• Microcontroller: A microcontroller (e.g., Arduino or Raspberry Pi) processes the signal from the rain sensor and activates the GSM module.
• GSM Module: The GSM module (e.g., SIM900) sends an SMS with a predefined message (such as “Rain detected” or “Rain stopped”) to a mobile phone or multiple users.
• Power Supply: The system is often powered by a rechargeable battery or solar panel, making it suitable for remote locations.
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