Switch Based On Presence In Home Assistant - Tutorial

This Home Assistant tutorial shows you how you can set up presence detection using groups and how you can detect if someone enters or leaves the house. Based on the presence of people in the house, you can switch lights, turn on the heating, and do many more exciting things. I am explaining the concept and demonstrating how you can set it up yourself in this step-by-step tutorial.

📓Note: You can also use the person entities instead of using the device_tracker entities as shown in the video in case you have multiple device trackers per person.

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The Light Group video is here:    • How to Control Lights in Home Assista...  

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If you got enthusiastic about Home Assistant, you can watch these videos too:
What is Home Assistant?:    • What Is Home Assistant? This is the u...  
How to install Home Assistant:    • The Home Assistant installation guide...  
Set up automations in Home Assistant:    • How to set up Automations in Home Ass...  
How to set up lights and light groups in Home Assistant:    • How to Control Lights in Home Assista...  
Create your own professional alarm system in Home Assistant:    • Create a professional alarm system in...  
and many more in this playlist:    • Home Assistant  

0:00 Introduction
0:53 Show use cases
1:42 Explain device tracking with the companion app
2:20 How to Find device_trackers in Home Assistant
2:47 Explain device tracking through router presence
3:18 Show in Developer tools what the states can be
4:22 Explain groups and how to setup groups file in the configuration.yaml
6:01 Add group somebody_home to groups.yaml
7:05 Add group everybody_home to groups.yaml
8:15 Show in Developer tools what the states of the groups can be
9:35 Create automation for first person arrives home
12:30 Create automation for others who arrive home (actually, child arrives home)
14:50 Create automation for everybody who leaves home

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