PRIYANKA , P.S.N.; ROSHITHA, J.S.S.; NAVYA, K. Sri; PRIYANKA, N. DTMF Based Home Automation Without using Microcontroller. International Journal of Scientific Research in Network Security and Communication, [S. l.], v. 6, n. 2, p. 1–4, 2018. Disponível em: https://ijsrnsc.org/index.php/j/article/view/124. Acesso em: 23 feb. 2025.