Internet of Things Innovation for Flood Detection: Monitoring Water Level, Temperature, and Humidity with Node MCU and Telegram Bot

Abstract

The problem of this research is the existence of Climate Change that occurred in the Indonesian region in 2024, especially in the Kudus, Demak, and Pati areas, there was a major flood that caused 20,772 refugees spread across 59 refugee locations, 93,149 people were affected by the flood, and there were 4 fatalities. This is a concern for researchers for experiments on flood detection devices. The purpose of this study is to develop a prototype of a water level, air temperature and humidity monitoring system in an effort to prevent flooding. The main difference from this research is not only focused on monitoring water levels, air temperature, humidity but also accompanied by message notifications delivered via telegram bots that convey information about the status of water levels, air temperature, and humidity, where there are 3 categories of notification status, namely safe, alert, and danger. The method used is a Literature Study on Flood Detection Devices, Tool Assembly, IoT Design, Integration with Telegram Bots, Buzzer Settings, Solar Cell Installation, Trial, Validation and Evaluation. The results of the research that has been done, after testing the IoT circuit to monitor water level, air temperature and humidity have shown very satisfactory results. This is evident from the notification in the form of air temperature status, humidity, and water level prototype simulation which includes when the water level is 0 - 7 cm the notification status is safe, when the water level is 8 - 15 cm the notification status is alert, and when the water level is above 16 cm the notification status is danger and a warning appears on the notification and the buzzer notification sound sounds.