Published October 5, 2024 © GPL3+

ESPHome Kennel Door Monitor

This project uses ESPHome, a Wemos D1 Mini (ESP-8266), and a magnetic reed switch to monitor the time your dog spends inside their kennel.

BeginnerFull instructions provided1 hour174

Things used in this project

Hardware components

Espressif Wemos D1 Mini

Reed Switch, Standard Gap

Hand tools and fabrication machines

Soldering iron (generic)

3D Printer (generic)

Story

ESPHome Kennel Door Monitoring Project

This project uses ESPHome, a Wemos D1 Mini (ESP-8266), and a magnetic reed switch sensor to monitor the time your dog spends inside their kennel. The onboard LED will light up when the kennel door is open, and turn off when closed.

Features:

Monitor the kennel door’s open/closed state.
Use the onboard LED to indicate door state (LED on when door is open, off when closed).

Bill of Materials:

1. Wemos D1 Mini (ESP-8266):

- Microcontroller for running ESPHome and controlling the reed switch and LED.

2. Magnetic Reed Switch:

- Detects the kennel door's open/closed state. The switch closes when the magnet is near and opens when removed.- Normal Closed is beneficial because it defaults to a "closed" state, making it easier to detect faults, such as if the wire gets disconnected, as the sensor will register as "open."

3. 3D-Printed Enclosure:

- Protect your ESP-8266 with this Thingiverse Enclosure by JonnyB

ESPHome YAML Configuration

This YAML code sets up the kennel door monitoring using a reed switch sensor. It also controls the onboard LED of the Wemos D1 Mini to show when the door is open or closed.

Explanation of the Code:

Wi-Fi Configuration: The device connects to your Wi-Fi network, with a fallback AP mode if Wi-Fi is unavailable.
Binary Sensor (Reed Switch): Connected to GPIO5, the reed switch detects whether the door is open or closed and logs it. The state change is delayed slightly to debounce the sensor readings.
Onboard LED Control: The onboard LED (GPIO2) turns on when the door is open and turns off when closed.

3D-Printed Enclosure

To protect your ESP-8266, print this enclosure using the [Thingiverse Kennel Monitor Enclosure](https://www.thingiverse.com/thing:4932236). It keeps your device secure and allows wiring for the magnetic sensor.

Indicator LED is off when open

Conclusion

This project enables you to track your dog's kennel door state and provides an easy-to-understand visual cue with the onboard LED. It’s easy to set up using ESPHome and a D1 Mini. The 3D-printed enclosure ensures everything is securely housed.

Feel free to expand this project with additional features, such as logging or integrating other sensors!

dog-kennel.yaml

esphome:
  name: dog-kennel
  friendly_name: Dog Kennel
  platform: ESP8266
  board: d1_mini

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  ap:
    ssid: "Dog Kennel Fallback Hotspot"
    password: "fallback_password"

captive_portal:

logger:

api:
  encryption:
    key: "your_api_encryption_key"

ota:
  password: "your_ota_password"

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO5  # Pin connected to the reed switch
      mode: INPUT_PULLUP
    name: "Kennel Door Sensor"
    device_class: door
    filters:
      - delayed_on: 100ms
      - delayed_off: 100ms
    on_state:
      then:
        - homeassistant.event:
            event: esphome.kennel_door_state
            data:
              state: !lambda 'return x ? "open" : "closed";'
        - lambda: |-
            // Control the onboard LED based on the state
            if (x) {
              id(led).turn_on();  // Turn on LED when door is open
            } else {
              id(led).turn_off();  // Turn off LED when door is closed

output:
  - platform: gpio
    pin: GPIO2  # Onboard LED pin on D1 Mini
    id: led

ESPHome Kennel Door Monitor

Things used in this project

Hardware components

Hand tools and fabrication machines

Story

ESPHome Kennel Door Monitoring Project

Features:

Bill of Materials:

ESPHome YAML Configuration

Explanation of the Code:

3D-Printed Enclosure

Conclusion

Code

dog-kennel.yaml

Credits

Brian Wente

Comments

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ESPHome Kennel Door Monitor

ESPHome Kennel Door Monitor

Things used in this project

Hardware components

Hand tools and fabrication machines

Story

ESPHome Kennel Door Monitoring Project

Features:

Bill of Materials:

ESPHome YAML Configuration

Explanation of the Code:

3D-Printed Enclosure

Conclusion

Code

dog-kennel.yaml

Credits

Brian Wente

Comments

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