Modelagem de um analisador de solo portátil com comunicação bluetooth.

Abstract

Soil analysis is a topic of utmost importance for the agricultural sector, especially for small-scale farmers and family farming. However, conducting this analysis is still a hurdle as it requires specific technical knowledge and the need for laboratory analysis. In this regard, the development of a portable soil analyzer with Bluetooth connectivity can be a viable alternative to assist this audience. This work outlines the creation of a portable soil analyzer with Bluetooth connection to aid small-scale farmers and family farming. To achieve this, a theoretical survey of soil analysis methods was conducted, as well as the implementation of electronic sensors capable of collecting specific information, such as pH, potassium, phosphorus, and organic matter. Based on the data collected by the sensor, soil adjustment was made according to the crop to be planted in the area. This work involved the collection of various data through a sensor using RS485 communication, comparison with a database from the Liming and Fertilization Manual for the States of Rio Grande do Sul and Santa Catarina, as well as sending this data to the user's mobile device via Bluetooth connection. Ultimately, the proposed device for evaluating soil quality demonstrated efficiency through the combination of simple components and a quality sensor, even though the development of the application presented significant challenges. The initiative remains relevant for family farming and small-scale producers due to its low costs, offering a practical and cost-effective solution.