Jhefri Asmi, and Oriza Candra. “Prototype Solar Tracker Based on Two Arduino Nano Microcontroller With LDR (Light Dependent Resistor) Sensor”. Elkom : Jurnal Elektronika Dan Komputer, Vol. 13, no. 1, June 2020, pp. 34-43, doi:10.51903/elkom.v13i1.132.