M. T. A. Mujitomo, H. Santoso, L. Widyawati, and D. Priyanto, “Home Security Voice Notification System With Arduino Sensor, PIR based SMS Gateway”, IJECSA, vol. 1, no. 1, pp. 1–8, Mar. 2022, doi: 10.30812/ijecsa.v1i1.1793.