[Notes]:
1. The camera's UID can be checked on the bottom of the clock.
2. If the camera cannot be found for a long time, tap refresh icon on the top right and wait for a few sec-
onds.
3. Another method for adding the camera:
Tap "QRCode" to scan the QR code on the bottom of the clock. The camera's UID
will show up on the screen. Input the default security code or password "888888"