Every time I just go out, I wonder if I have locked the door. Could I have forgotten to lock the door? It has been bothering me, and I even climbed up the stairs again to take a look, which is time-consuming and labor-intensive.... Based on this, I want to make a small thing that allows me to see the status of the door of my home directly on my mobile phone after I go out, without having to worry about it. Self-doubt. After the trial, I discovered a small function. You can see the time you go out and the time you go home every day. You went out late that day because you slept in, and how late it was compared to yesterday. These can be accurately reflected... In reality, not everyone Door locks are all smart locks, so I thought of using a simple solution to complete the design. Therefore, I chose a Hall sensor and a Tuya WIFI module. The solution is also very simple. Install a fixed magnet on the door surface. When the door is closed, the magnet is close to the Hall (switch) sensor and the circuit is turned on. The change in level is detected and reported to the center.
The picture above is a demonstration picture. The picture
above is an installation diagram.
The picture above shows the data received by Tuya Data Center
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