The Design of Soil Temperature and Humidity Monitoring Systems with IoT-Based LoRa Technology

Soil temperature and humidity are important factors in affecting the condition of agricultural sector, which has an impact on quality quantity production. Lack information soil is one causes productivity deficiency process cultivation. The application technology field agriculture expected to be able reduce various adverse effects conditions. One by periodic monitoring, such as soil. This research aims design LoRa used a data transmission medium for monitoring applying system that based Blynk application, will make users easier monitor remotely. sensor was acquire with 98.37% accuracy 91.63% accuracy. changes parameters have effect its performance. experimental results Bandwidth variation (BW) from 31.25 kHz, 62.50 125 250 500 kHz at distance 15m, best SNR RSSI values were obtained BW 5.42 dB -104.90 dBm. Whereas, ToA value 27.50 ms. While, result Coding Rate (CR) CR 4/5, 4/6, 4/7, 4/8 4.10 -106.40 dBm he 4/5 112.70 In testing using Spreading Factor (SF) SF7, SF9, SF12, higher SF used, wider range area communication be. Configuration SF7 SF9 only reach 25m, while SF12 35m.