I want the door to unlock automatically when I approach it. It locks automatically when I'm not close to the door. It will connect with my phone, unlock it when it is near, and lock it when it is far away. But I don't want it to open the lock to everyone. It would be nice if there was a security measure such as a password. What should I use for this? Is Bluetooth or Wi-Fi communication better? I'ld be glad if you can help me.
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