ESPHome Ultrasonic Break-Beam Sensor

Another practical use for an ultrasonic sensor - use it as a break-beam sensor across a doorway, in my case as a way to trigger an alert to let me know that my dog needs to go out.
Note that I have been tweaking the ESPHome device's configuration a lot since I made the video, so check the full article here for the latest: https://www.speaktothegeek.co.uk/2022...

D1 Mini: https://amzn.to/3ToGXPT
Ultrasonic Sensor HC-SR04: https://amzn.to/39oKzP6
Project enclosure (58x35x15mm): https://amzn.to/3QWBrBn
Sonoff Zigbee Door Sensor: https://amzn.to/3DytVtJ

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Original 'Let The Dog Out' video:    • Let the dog out! Motion activated not...  
Original 'Ultrasonic Motion Sensor' video:    • ESPHome Ultrasonic Motion Sensor  

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