I built a gun that shoots out a narrow beam of ultrasonic audio. The sound can only be heard by people inside the narrow beam.
How to build an ultra low power LoRaWAN / The Things Network device using a MaxBotix ultrasonic sensor.
Part one of a project that will demonstrate the building of an FPGA/SoC-based hexapod robot.
Calculate distance to a certain object using an ultrasonic sensor. It can be used for car distance alerts, security systems etc.
This project is based on Arduino radar (HC-SR04) which is digitally visualized using Processing.
Who said autonomous driving was only for the premium car manufacturers? SonicDisc enables you to autonomously park like a pro for $10.
