Rancang Bangun Alat Pengusir Hama Tikus Menggunakan Gelombang Ultrasonik

ABSTRACT Technology is applied to simplify every means needed for human survival. Indirectly technology has reduced humans needs in some routine activities that are usually carried out. The rapid development of technologyandits application in all fields can be a solution to solve problems faced by humans, one of which is pets at home. This tool utilizes a series of astable multivibrator IC 555…