Professional ALARM SYSTEM in Home Assistant! How to set it up.

This paragraph introduces the concept of setting up a cost-effective alarm system using Home Assistant, an open-source home automation platform. The speaker acknowledges a previous video with a mistake and highlights the improvements in Home Assistant that make setting up an alarm system easier now. The video promises to guide viewers through creating groups for sensors, lights, and speakers, setting up an alarm panel, and establishing automations for triggering the alarm, flashing lights, sounding a siren, and sending phone notifications.

The speaker demonstrates how to set up groups in Home Assistant for sensors, lights, and speakers, which are essential components of the alarm system. These groups will be used to trigger the alarm, flash lights, and sound a siren, respectively. The paragraph also covers the process of editing the configuration file to set up the alarm control panel, including defining arming and disarming codes, arming and delay times, and trigger durations. Additionally, the speaker provides a link to their GitHub page for code examples and discusses the importance of restarting Home Assistant after making changes.

This section focuses on creating the first automation that triggers the alarm when the system is armed away and motion is detected. The speaker explains how to set up a state trigger and a condition that checks if the alarm is armed before triggering it. The automation involves a service call to the alarm control panel to activate the alarm. The speaker also shows a practical demonstration of arming the alarm and triggering it with motion, followed by a pending state that allows time to disarm before the alarm fully activates.

The speaker proceeds to explain how to create an automation for flashing lights when the alarm is triggered. The automation includes two triggers: one for when the alarm is triggered and another for when it is disarmed. Actions within the automation involve turning on the grouped lights to a bright red color, waiting for a brief period, turning them off, and repeating this process until the alarm is disarmed. When the alarm is disarmed, the lights return to a normal state with a different color and brightness.

In this part, the speaker details the process of setting up an automation to sound a siren through the speaker group when the alarm is triggered. The automation uses a state trigger to check the alarm's status. Actions include setting the speaker group's volume to a high level and playing an MP3 file that serves as the siren sound. The siren plays for 10 seconds and repeats until the alarm is disarmed. The automation also includes an action to stop the siren and reset the speaker volume when the alarm is disarmed.

The final paragraph covers the creation of an automation that sends a notification to the user's phone when the alarm is triggered. The automation uses a state trigger for the alarm's triggered status and calls a service to send a notification with a custom message and title. The speaker tests the entire alarm system, including the notification feature, to demonstrate that the alarm, light flashing, siren, and phone notification all function as intended.