Developing a Prototype of Solar Tracking for Solar Cell Energy Optimization with Internet of Things (IoT) Technology

Indonesia is a country with various natural potentials energy, one of them is solar energy that can be used as an alternative source of electricity through Solar Power Generator (PLTS). The energy produced by PLTS is very dependent on sunlight conditions. To get the maximum energy, a prototype of solar tracking was developed. This research used Internet of Things (IoT) technology and combined in PLTS which utilizes internet connectivity for system control, and data sharing in real-time. This solar tracking system prototype using STM32 microcontroller, servo DS3218MG. Based on compilation testbed results of solar tracker, shown that there was increased value of current with 25%, 15% for voltage, 20% for light intensity, and 35% for power production. The testbed results of the solar tracker using the STM32 microcontroller get the maximum value of light intensity and current with the position of the sun's direction that is monitored and stored through the thinger.io webserver database in real-time.