OTP Based Device Control System

OTP based wireless system is the advanced version of key based locking system the problem with the earlier key-based locking system is that every time need to carry a key to unlock the lock there is a high risk of losing a key if key is lost then, break the locking system which also result in wastage of money and for old people it is difficult to open the key based lock and there can only be one unique key for different locks having different keys. In project advanced version OTP based lock is used with high security. In project there is 3 layers security system. If someone tries to access it will generate a random OTP which was send to owner mobile & display for fraction of seconds. If the person entered a wrong OTP, it will be alert alarm buzz & generate a new OTP again. After successful enter the correct OTP will enter in 2nd layer protection which was asking us to enter password. Finally, we need to verify our RFID tag at 3rd layer protection. So, by this way our project was very highly security system able to use at bank locker, Data rooms in companies, confidential areas etc