For [Jianjia Ma]’s QingStation, he decided to build another type of wind sensor: An ultrasonic ... car or other traffic. Other sensors include an optical rain sensor, light sensor, lighting ...

To supply targeting data for the launcher, an Arduino Uno uses an ultrasonic sensor pair mounted atop a servo. As the servo rotates, the returns from the ultrasonic sensor are plotted on a screen ...

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 ...