Low-Cost Remote-Sensing-Node based on LoRa Mesh Network for Smart Agriculture
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Abstract
The advanced technology of the internet of things (IoTs) is currently a low-cost and low power solution, and able to transmit data remotely, resulting in the transformation of traditional agriculture into smart agriculture. Therefore, this paper presents the development of low power and low-cost remote communication system based on the Heltec WiFi LoRa 32 microcontroller for smart agriculture. The proposed system divides into two parts: (i) the wireless network (Mesh network) is to communicate data between three sensor-nodes and server-node at a distance no more than 100 meters, (ii) the radio frequency signal at band 868.125 MHz on the device itself is to communicate between server-node and gateway that is far more than 500 meters. Then send data via the internet service provider (ISP) on the CloudMQTT to monitor the required data. The development of this remote communication system can apply to large-scale agriculture that is far from the ISP to know environmental data such as the temperature and humidity. The experiments determine the test area covering an area of 1,200 square meters. Discussions present the data of distances thatcan send data from the signal station (LoRa-Node-Server) to the receiving station (LoRa-Gateway) then send data via the ISP to the cloud server in another area, at 710 meters, especially.
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References
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