Chris LeeI 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.
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