Abstract: This paper presents two PZT piezoelectric micromachined ultrasonic transducer (PMUT) designs for distance sensing applications, fabricated using a foundry-compatible multi-project wafer (MPW ...
Abstract: Distance is an important parameter in intelligent control. Common ranging methods include laser, microwave, infrared, and ultrasonic ranging. Ultrasonic has a broad application prospect in ...
This project uses an HC-SR04 ultrasonic sensor to measure how close an object is. A buzzer and LED react depending on the distance, similar to a car parking sensor. < 10 cm → buzzer and LED stay on.
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