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https://github.com/michaelbolanos/home-assistant-door-sensor

This automation manages an alarm system based on the status of the rear door sensor and a bypass button. It ensures that the alarm triggers when the rear door is opened unless the bypass mode is active.
https://github.com/michaelbolanos/home-assistant-door-sensor

automation home-assistant senior-centers unifi-protect unifi-protect-cameras

Last synced: 25 days ago
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This automation manages an alarm system based on the status of the rear door sensor and a bypass button. It ensures that the alarm triggers when the rear door is opened unless the bypass mode is active.

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README 

          
# Home Assistant Automation: Door Sensor Alarm Control



## Overview

This automation manages an alarm system based on the status of the rear door sensor and a bypass button. It ensures that the alarm triggers when the rear door is opened unless the bypass mode is active.



This system was created to **monitor individuals who may be at risk of unknowingly exiting a door**. It provides an additional layer of security without modifying an existing home or commercial alarm system. This alarm can be used **at any time** for a **specific door**, avoiding the need to tamper with an overall security system.



## Hardware Components Used

- **Shelly Button 1** – Used to toggle the alarm bypass mode.

- **Shelly 1 Plus Relay (Status Light)** – Controls the status indicator.

- **Shelly 1 Plus Relay (12V Siren)** – Controls the siren activation.

- **12V DC Power Adapter** – Powers the combined siren and flashing red light.

- **Aqara Door Sensor** – Detects when the rear door is opened or closed.

- **SMLIGHT SLZB-06M Zigbee Coordinator** – Manages Zigbee-based devices, including the Aqara door sensor.

- **UniFi Cameras** – Integrated with Home Assistant to provide real-time monitoring of the rear door.



## Home Automation Setup & Raspberry Pi Performance



- **Performance Considerations:** The Raspberry Pi 4 has more memory and processing power than previous models, making it well-suited for running Home Assistant, HACS (Home Assistant Community Store), and multiple integrations efficiently.

- **Device Networking:** All applicable devices have static IP addresses.

- **Backup Considerations:** Backups are crucial due to the risk of SD card corruption. A high-quality SanDisk SD card is used.

- **Heat Management:** The Raspberry Pi 4 tends to get hot, which may require additional cooling solutions.

- **Display Connectivity:** Raspberry Pi 4 requires a **Micro HDMI to HDMI cable** to connect to an external display. If using a **VGA monitor**, an additional **HDMI-to-VGA adapter** is needed.

- **Home Assistant Core:** Manages all automations and integrations.

- **Integrations Used:**

  - **Shelly Integration** – Manages Shelly Button 1 and relays.

  - **ZHA (Zigbee Home Automation)** – Handles the Aqara door sensor via the SMLIGHT SLZB-06M Zigbee Coordinator.

  - **UniFi Integration** – Provides real-time camera feeds, including monitoring of the rear door and status light.



## Dashboard & Battery Monitoring

- A **custom Lovelace dashboard** is set up in Home Assistant to:

  - Display the status of the **rear door sensor**.

  - Show the **status light** in real time.

  - Stream the **UniFi camera feed** for immediate visual confirmation of door activity.



## Automation Details



### Battery Monitoring & Replacement Guidelines

- The Aqara Door Sensor uses a battery, and its battery level is monitored in Home Assistant.

- The battery status has been added to the Lovelace dashboard to ensure timely replacement and prevent unexpected failures.

- Batteries should be replaced when they reach **60% or below** to maintain optimal performance and prevent device disconnections.

- **Alias:** 11 - Door Sensor

- **Description:** Controls alarm based on rear door status and bypass button.



## Triggers

1. **Button Pressed**

   - Triggered when the Shelly Button 1 is pressed.

2. **Door Opened**

   - Triggered when `binary_sensor.rear_door_sensor_opening` is `on` for 2 seconds.

3. **Door Closed**

   - Triggered when `binary_sensor.rear_door_sensor_opening` is `off` for 2 seconds.



## Actions

### Button Press Handling

- If the alarm bypass is **off**, pressing the button will:

  - Turn **on** the `input_boolean.alarm_bypass`.

  - Turn **on** the alarm switch.

- If the alarm bypass is **on**, pressing the button will:

  - Turn **off** the `input_boolean.alarm_bypass`.

  - Turn **off** the alarm switch.



### Door Open Handling

- If the alarm bypass is **off**, opening the rear door will turn **on** the alarm switch, activating the siren and flashing red light.



### Door Close Handling

- Closing the rear door will:

  - Turn **off** the alarm switch.

  - Ensure the alarm system is fully deactivated.



## Mode

- The automation runs in **restart** mode, meaning it will restart if triggered again while running.



## Variables

- `bypass_active`: Tracks whether the bypass mode is active.



## Notes

- The automation ensures the alarm only triggers when the door is opened and the bypass is inactive.

- The bypass button allows temporary disabling of the alarm system.

- The alarm system resets when the door is closed.

- The status light provides a visual indication of the alarm system state.

- This alarm is designed to work alongside an existing home or commercial security system **without requiring modifications**, providing additional protection for a specific door when needed.



## Problems & Considerations

### 1. **Sonoff Button Issues**

- The **Sonoff Zigbee button** did not work reliably and was replaced with the **Shelly 1 WiFi button**, which is also **hard-wired**.



### 2. **Zigbee Device Stability**

- **Aqara door sensor** sometimes disconnects; considering **Konnected Alarm Panel** for hard-wired integration:  

  [Konnected Alarm Panel - Wired Alarm System Conversion Kit](https://konnected.io/products/konnected-alarm-panel-wired-alarm-system-conversion-kit)



### 3. **System Reboot for Stability**

- Rebooting the system periodically enhances overall stability. Restarting Home Assistant and the Zigbee Coordinator helps refresh connections and ensures smooth operation.



## Home Assistant YAML Configuration, Customization & Community Contributions

This automation is configured in Home Assistant's YAML file under Automations and can be managed via the UI.



### Custom YAML Code & Entity ID Changes

We modified our YAML configuration to ensure flexibility and ease of maintenance. The entity IDs were carefully renamed for better readability and consistency. Some key changes include:

- Renaming `binary_sensor.rear_door_sensor_opening` to a more intuitive ID.

- Ensuring that `input_boolean.alarm_bypass` aligns with other related automations.

- Optimizing the conditions to make the system more efficient and reduce unnecessary triggers.



### Improvements and Features

- **Hard-wired Shelly 1 WiFi Button**: Instead of relying on battery-powered Zigbee devices, we switched to a hard-wired Shelly button for more reliable operation.

- **Zigbee Stability Improvement**: Best practices like rebooting the Zigbee Coordinator first before HA to improve system reliability.