Prototype Smart Garage System

• Closes garage door automatically if left open and garage is unoccupied
• Disables garage door when vehicle hatch is open to prevent damage to hatch
• No wire connection or modification to garage door motor control circuitry
• Communicates via cellular ioT and ESPNOW wireless protocol; no dependence on WiFi router
• Optional Home Assistant for dashboard or redundant control

Sensors broadccast ESPNOW and MQTT for redundancy

• Garage door open/closed
• Garage motion
• Garage temperature, humidity, light, flood
• Vehicle hatch open/closed
• Ultrasonic vehicle presence detector

Actuators

• Kasa smart plug for garage motor
• Garage Controller connects to garage remote to open or close garage door

Software features

• Arduino C++, adapted from Ambient and AmbientHUB software in the current group of repositories
• Cellphone notification when garage door is opened or closed
• Remote control of garage door from cellphone
• Reports status of all garage sensors via cellular network
  • Car present or absent
  • Door open or closed
  • Vehicle hatch open or closed
  • Motion in garage
  • Light on/off
  • Temperature/Humidity/Flood
  • The software documents the pin connections for the sensors.

Garage Monitor Components

• ESP32 development board

• PIR sensor

• temperature/humidity sensor

• photoresistor

• OLED display

• shielded cable to garage door magnetic reed switch.

  

• Use Velcro to attach one side of the magnetic reed switch to the garage door rail, the other side of the switch to the garage door.

  

• GarageDoor.ino software reports motion and garage door state, light level, temperature, and humidity wirelessly to the Garage Controller via ESPNOW .

  Ultrasonic vehicle monitor reports whether vehicle is present or not:

  

• eSP32 development board, ultrasonic sensor, bracket measure distance in inches.

• When vehicle is absent, it reports 80 inches.

• When vehicle is present, it reports 15 inches.

• UltrasonicTapeMeasure.ino software reports to the Garage Controller via ESPNOW.

Vehicle Hatch Sensor reports hatch open or closed state:

• Esp32 development board, Reed Switch mounted just inside hatch.

  

• AutoHatch.ino software reports hatch status to the Garage Controller via ESPNOW.

• Garage Controller disables power to garage door motor when vehice hatch is open by signaling a Kasa smart plug.

GarageController components:

• LillyGo TTGO sim 7000G
• ioT SIM card
• relay
• temperature/humidity sensor,
• garage remote control,
• OLED display

• Open the remote control and tack 2 wires to the switch for connection to the relay.
  
• GarageControler.ino software receives data wirelessly via ESPNOW from the sensors described above.
  
• Garage door is opened or closed by activating the relay, which simulates pressing the button on the garage remote.
  
  - Disables garage door if vehicle is present AND hatch is up by signaling the Kasa smart plug.
  
  - Closes garage door if the vehicle is absent AND the garage door is open AND there has been no motion for an hour.