How to find device

I use an Lenovo tablet as wall panel. Now I would like to display it’s battery status.
However the tablet is not automatically discovered. When I try to add it with nmaptracker by the IP-address it still does not show up in the states list. It’s camera did show up.

Anyone knows how to add a device that is not discovered ?

I don’t believe the nmap device tracker will pull the device battery information. I may be wrong though, it has been awhile since I ran the nmap component.

Nmap tracks devices by their mac address. I would check what the MAC of your tablet is and see if it is in the known_devices.yaml file.

Is the tablet IP in the IP range scanned by NMAP?

Thank you for your quick answer. It is indeed in the known_device.yaml

I missed it, because it’s state is set to not home.
Because I know it’s IP I added it manually to device tracker.
I am gonna try to figure out how to get info about the battery state