Perbandingan Efisiensi Konversi Energi Panel Surya Tipe Polycrystaline dengan Panel Surya Monocrystaline Berbasis Arduino di Kota Pangkalpinang - Muhammad Yonggi Puriza; Welly Yandi; Asmar Asmar (Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering), 2021)