In this research a monitoring and data logging system is designed and developed for small photovoltaic systems. Designed system can monitor various parameters, along with PV and battery voltages and currents. Different sensor modules are connected to an Arduino LoRa Transmitter (ALT) to measure and collect system parameters, while ALT sends the parameters to another (ALR) working a receiver. By using Putty software, the system operator can show the sensing data on a monitoring screen and save data that text file on a computer. Additionally, the distance between ALT and ALR has been tested at different points in St. John's, NL, Canada. The results of the experiments demonstrate that the designed monitoring and data acquisition system can transmit up to 15Km in real-time using only 1.125W. Index Terms---PV Power System, Low-Cost Monitoring System, Arduino based LoRa, Renewable Energy
