Treffer: IoT based early warning system of landslide and flood disasters.

Floods and landslides are very detrimental to the environment and human life. As a result of these natural disasters, there was an increase in the number of deaths. So we must have a monitoring and observation system for floods and landslides. One of the emerging technology fields is the Internet of Things (IoT). The IoT in this prototype is used for real-time monitoring of water levels and ground movements using a web browser as an interface. The components used consist of an Arduino micro-controller, ESP 32, ultrasonic and water level sensors to read water level data, MPU6050 to read soil movements, and soil moisture sensors to monitor soil moisture. Data from the sensor will be sent to the database via the API address (http post), the web will display the data taken from the database. The web is created using the HTML, CSS, and Javascript programming languages, the editor uses visual code, and the framework used by Laravel. For urgent security, a siren (buzzer) is also provided, when the sensor exceeds the predetermined limit, the siren will sound indicating the community to evacuate. The results showed that the average value of moisture in the garden soil was 65.48% and the sandy soil was 85.47%. The average value of soil movement for garden soil is -2.9° and sand soil is - 1.92°. The percentage error of height measurement is 0.98%. [ABSTRACT FROM AUTHOR]

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