Designing a Water Level Measurement System to Monitor the Flow of Water from the Primary Catchment Source of Tulcán City Using LoRa Communication Technology

This study focuses on utilizing LoRa wireless communication technology to create a sensor network that measures the water level of a river. The collected data can help assess the current state of the river and detect any changes in its level. Alerts can be sent via email if any changes are detected. The system consists of various components. Firstly, sensor nodes are utilized that employ HC-SR04 sensors for level calculation. Secondly, the ESP32 microcontroller is connected to the LoRa RFM95 module for wireless transmission using LoRa. Finally, the microcontroller handles the processing tasks. The central node acts as a receiver for the data gathered by the sensor nodes. It consists of an Arduino Uno compatible with the LoRa RFM95 module. The central node is connected to a Raspberry PI 4 for processing and then sending the data using the MQTT protocol to the server. The information can then be viewed on the ThingSpeak platform. Tests have been conducted to verify the established communication between the nodes and the Gateway. The results have shown that the LoRa communication parameters are accurately established in the RFM95 modules. Additionally, the data sent from the nodes to the Gateway is visualized on ThingSpeak.