Hello, I have a configured ESP Home device that I can control it from the dashboard, so I know it’s working. It doesn’t show in the ESP Home tab in the sidebar. How do I get it there again?I have done several reboots.
Thanks for any help.
These are different things. 
One is the ESPHome dashboard, that’s the one you can reach in the left sidebar. This dashboard is responsible for configuring and flashing a firmware on your ESP device. It is the ESPHome add-on in HA.
The other one is the ESPHome integration. The integration is responsible for the communication between HA and the ESP device, that is flashed with an ESPHome firmware. This is where the data comes into HA. Eg. you could let a friend flash your ESP device (with his ESPHome dashboard) and integrate it in your HA. That’s why these are different.
Unfortunately, the YAML files, that where configured for that device are not recoverable from the device. You use them to compile a firmware, and after that, these YAML configuration files stay only in your ESPHome add-on.
So if they are lost, you can first check under your /config folder, there is a subfolder esphome where you should find the YAML files. If the file for this device isn’t there anymore, you’d need to restore it from a backup.
See here in the documentation of ESPHome:
If a recovery from a backup is necessary, you can only copy back the one needed YAML file.