While a well-known use of this is sonar, ultrasonic sensors can also be put to use ... A motor rotates it around a 180-degree field-of-view and an Arduino takes and records measurements during ...

Today’s freshwater anglers rely obsessively on live sonar. Are saltwater anglers destined to follow suit? We look into some ...

At the heart of the “surfsonar” is the Ping Sonar Echosounder, a sonar transducer designed for AUV’s and ROV’s. [foobarbecue] embedded the transducer directly into the board. Data is fed ...