Garage133: DIY garage automation

Garden133 is a DIY garage door automation system using ESP32, sonars,relays, and Home Assistant integration. Door control, car detection.

Chris Lee

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Description

Garage133 is a DIY automation system for garage door control and monitoring. It supports a two car garage, and is designed to integrate with Home Assistant. It uses ultrasonic sensors to detect both the door state and car presence. Integrated relays allow for remote door operation. Garage state estimation is performed using Hidden Markov Models (HMMs). The device has a responsive web interface written in Svelte.

The project includes a custom PCB with a 3D printed case, 3D printed sonar mounts, and C++ firmware. Everything (C++ firmware, OpenSCAD designs, KiCAD design) is published on GitHub with an MIT license.

Details

The project history and design are described in Garage133: DIY Garage Door Automation with ESP32 and Home Assistant.

The most recent update is Garage state estimation in an uncertain world, about how the project now uses HMMs for classifying each side of the garage into states "DOOR OPEN", "CAR PRESENT", and "EMPTY". It also presents the web interface for the device, which is now written in Svelte.

Project Logs

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Dual sonar / HMM classifier update
Chris Lee • 3 hours ago • 0 comments
I updated the project to support two sonars per garage bay. A multi-output HMM is used to estimate the state of the garage:
- Is a car present?
- Is the garage door open or closed?
The dual-sonar system has demonstrated much better robustness, and can distinguish between a car being present or absent while the garage door is open.

See Dual Sonar ESP32 Garage State Estimation.