Development and Calibration of Low-Cost Climate Station

There are many scientific studies that require climate data collection. However, the lack of financial resources can often be an obstacle to acquiring the necessary equipment for this purpose. Therefore, this research aims to assemble and calibrate low-cost equipment for measuring climate data (temperature and humidity). To this end, two stations were developed using the Arduino development platform together with meteorological sensors, one designed for data collection in external environments and the other for data collection in internal environments. The calibration process lasted approximately 2 hours and was carried out inside a climate-controlled chamber through comparison with data collected from already calibrated measuring equipment. Based on this comparison, it was possible to adjust the output data provided by the proposed meteorological stations. At the end of the work, an R² coefficient very close to 1 was obtained for both stations, which indicates that the sensors used in the proposed stations are reliable. However, reading the graphs leads us to believe that to actually validate the internal station sensor, a longer measurement period would be necessary.