Default value for maximum measurement distance is 4m, since HC-SR04 sensor can't measure reliably beyond that. However, if you are using another sensor or if you you don't care about distances larger ...
Abstract: Ultra-high frequency (UHF, >100 MHz) ultrasound imaging has significant potential applications in musculoskeletal anatomy, skin, oral mucosa, and the eyes as a new high-resolution imaging ...
Arduino CLI is an all-in-one solution that provides Boards/Library Managers, sketch builder, board detection, uploader, and many other tools needed to use any Arduino compatible board and platform ...