While it’s not radar, subbing in ultrasonic sensors is how [Dzl ... rather than just using the digital output of the sensor. An ESP32 and a 24-bit ADC were used to capture the echo signal ...

Historically, we’ve used IR and ultrasonic sensors but [Makers Mashup] decided to use an ESP32-Cam as a motion sensor in his latest animatronic creation. You can see a video of the device and ...

This one is an unusual smart home project, potentially - how to monitor a fish tank’s health with an AI-enabled ultrasonic sensor system. The detailed project is highlighted on Hackser.io and features ...