G., Divya, Mohamed Yousuff Caffiyar, Mohammed Zabeer Z., Nehru Nandha K., Abdul Rehaman R., and Kushalraj M. 2024. “OTP Based Door Lock Using Arduino and SIM800L”. IRO Journal on Sustainable Wireless Systems 6 (2): 174-88. https://doi.org/10.36548/jsws.2024.2.008.