Sensors - an entity or a sensor in YAML configuration?

Configuration
1

I’ve been adding sensors on a Zigbee network using deCONZ. HA classes them as Entities when I look in the Code Editor on the UI Card. There is nothing in the Configuration YAML file.
Many user videos, however, show people creating a Sensor file in the YAML configuration. and then adding all the sensor details. Why is there a different approach?

2

Are you saying these videos are showing how to manually configure Zigbee-based sensors in configuration.yaml? Post a link to one or two.

Or are they showing how to configure sensors based on other integrations such as Template, MQTT, RESTful, etc?

3

Thank you for the reply, 123 Taras. These are fair questions. I’ve noticed there is no sensor file in the configuration.yaml. As a first step, should I add the following line to the configuration.yaml file?

sensor: !include sensor.yaml

As a second step, I should the create a file in the File Editor called sensor.yaml

It’s my first time.