International Journal of Science, Engineering and TechnologyAuthors: Mr.M.Ramana Reddy, Mr.B.Ajantha Reddy, Sampeta Sai Kumar, Talluri Lingeswara Rao, Shaik Jani Basha, Kanigiri Venkateswara Reddy
Abstract: Temperature, humidity, PM 2.5, and formaldehyde are just a few of the air quality factors that may be measured in real-time by a low-cost system that utilizes LoRa technology. A star topology is used in the system's architecture, with sensor nodes linked to a routing node that is linked to a gateway node. The sensor nodes are built using inexpensive, commercially available sensors that are connected to a microcontroller. The sensor data is sent to the routing node, which is also built using a low-cost microcontroller (like Raspberry Pi), using a LoRa hat module SX1262. The gateway device stores, displays, and processes data using a time-series database and a server. A transmission range of around 3 km with no packet loss and 4 km with 20% packet loss may be accomplished using LoRa technology.
DOI: https://doi.org/10.5281/zenodo.20392482
