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ESP32 motion detection setup with Arduino and ESPHome for Home Assistant

In this video, I'm exploring the use of Mini PIR Sensors with ESP32 with both Arduino-based projects as well as making a movement sensor for Home Assistant by using ESPHome. The sensor is quite ...
IEEE

Improved Air-Coupled Ultrasonic Transmission Using Pulse Compression

Abstract: Air-coupled ultrasonic testing avoids contamination and reduces maintenance costs, but suffers from poor signal-to-noise ratio (SNR) due to impedance mismatch. Rather than developing new ...