Design and implementation of an electronic system to monitor and record agroclimatic variables in greenhouses

Objective: To describe the development of a low-cost electronic device that can monitor, track, record, store, export, and interpret climatic variables of greenhouse-produced crops. Methodology: An Arduino UNO board was used, along with specific sensors, to measure the agroclimatic variables under study. A Raspberry Pi® 3B+ board was also used to store and export the recorded information. The previously assembled device was installed in a greenhouse located in San Agustín Calvario, municipality of Cholula, Puebla, from March to July. Finally, graphs were developed to interpret the variables according to the agroclimatic requirements of native cucumber. Study Limitations/Implications: Greenhouses must have access to an electrical supply, regardless of their geographic location or the crop they produce. Findings: A low-cost electronic system and device were successfully developed, allowing each sensor to monitor, record, store, and export the following agroclimatic variables: minimum and maximum temperature, relative humidity, carbon dioxide (CO2) concentration, and light intensity in a greenhouse with electrical supply. Regarding data interpretation, graphs were developed for the agroclimatic variables in the greenhouse, based on the needs of the native cucumber plant.