Resumo

HERNANDEZ-RODRIGUEZ, Victor et al. IoT weather station based on TTGO T-Beam and LoRa communication. EAC [online]. 2023, vol.44, n.3, pp. 16-25.  Epub 01-Fev-2024. ISSN 1815-5928.

Climate variability has increased the need for atmospheric monitoring systems at the local level. Meteorological data are useful for climate prediction, agriculture and crop management, water resources management, and air quality estimation. Current solutions to obtain meteorological data are typically regional, expensive, and depend on telecommunications providers, limiting the value of the information and its accessibility in rural areas or specific places. Corresponding to the development of more affordable systems, the following article presents a monitoring solution for meteorological variables based on the TTGO T-Beam development board and the Bresser 5-in-1 weather station, using LoRa communication. The proposed hardware design includes the Bresser 5-in-1 station, two T-Beam development modules, and a personal computer. The software architecture uses the TTGO T-Beam modules to transmit and store the weather station measurements, the IoT platform "Node-RED" is used for data acquisition, while the "Grafana" platform is used for the visualization. Link tests with LoRa technology (868MHz) demonstrated the ability to operate at distances greater than one kilometer. The research results confirmed the possibility and reliability of remotely integrating measurements from the Bresser 5-in-1 weather station to an open-source IoT platform. This use of open software and hardware solutions allows their generalization by other researchers.

Palavras-chave : T-Beam; LoRa; IoT; Node-RED; Grafana; weather station.

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