1. Daegyu S, Hanshin G, Yongdeok N (2015) Design and Implementation of digital door lock by IoT. KIISE Trans Comput Practices 21(3):215–222
2. Nehete PR, Rane KP (2016, June 21) A paper on OTP based door lock security system. Int J Emerg Trends Eng Manag Res (IJETEMR) II(II). ISSN 2455-7773
3. Supraja E, Goutham KV, Subramanyam N, Dasthagiraiah A, Prasad HKP (2014) Enhanced wireless security system with digital code lock using Rf&Gsm technology. Int J Comput Eng Res 4(7)
4. Oommen AP, Rahul AP, Pranav V, Ponni S, Nadeshan R (2014) Design and implementation of a digital code lock. Int J Adv Res Electr Electron Instrum Eng 3(2)
5. Deeksha P, Mangala Gowri MK, Sateesh R, Yashaswini M, Ashika VB (2021) OTP based locking system using IOT. Int J Res Publ Rev 2(7)