Development of IoT Embedded Board with Application for Agricultural Field Monitoring in Honduras

In recent years the gap between digitization and agricultural processes has narrowed considerably. The IoT is able to connect sensors, embedded systems together with different technologies to connect and transfer data between multiple devices over the internet. With the internet of things, agricultural processes have a support system where through monitoring and storing crop data, areas such as decision making, resource optimization, crop health, pest prevention and even environmental protection are improved. In this research, an IoT embedded board was developed with a web application for sensor control and real-time data monitoring of agricultural fields. Using the UART communication protocol, a connection was established between the sensors to the ESP8266 Wifi module for data transfer of the variables collected by the sensors, in order to monitor the ambient temperature, soil temperature and humidity, for crop optimization. Using the mechatronic product development methodology in V, a detailed approach to the design and integration of the board was carried out, through an analysis of systems and subsystems to ensure a successful final integration. In the design stage, simulations were performed for sensor analysis and digital tests for data transmission over the Internet. During the systems integration, the prototype of an embedded board was obtained, which allowed a connection between the sensors and the internet with a transmission speed of 115,200 baud, obtaining a data reading with a high response speed to obtain real time data.