N. Hemala, D.Priyanka, N.Kanchanadevi, B.Arjanadevi, and L.Dharshini. 2018. “Security System Using PIR Sensor, Arduino Along With Android Application”. International Journal of Intellectual Advancements and Research in Engineering Computations 6 (2):2207-11. https://ijiarec.com/ijiarec/article/view/814.