Perancangan Flood Warning Alarm Sederhana Dengan Indikator Ketinggian Berbasis Tenaga Panel Surya - Komalasari Komalasari; Dini Nurlaili; Maulidya Ainun Qolbi; Nurul Halimatussa'diah; Rifa'atul Maulidah (DIFFRACTION: Journal for Physics Education and Applied Physics, 2022)