One of the better smart home products you can buy is the smart lock. It’ll help you know who is coming and going, and you can set up routines to lock your door at night or when you leave. But it also often means giving up your data to the company that made your smart lock and any connected smart company like Amazon and Google. If you don’t like that thought, why not make your own?
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Source : Make Your Own Smart Lock with a Raspberry Pi, RFID Badge, and Custom Code
