1. GSM Based Door locking and Unlocking system
Today the most important aspect all of concerned very much is Security Systems. Consider Home security. Generally, we have door locks. Imagine that you had locked your house and went outside. Suppose you had lost your key, What will you do? Obviously, we need to break the look or order new key. Both will take certain and money. Through this project, you are going to build a unique Security system where you can open/close the lock with your mobile.
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