Using an Arduino Nano, ultrasonic sensor, and buzzer, it can sense objects in their way and provide an instant audible alert to them. So they can navigate independently. The best part of this blind ...

Enables autonomous driving of a 2 or 4 wheel car with an Arduino and a Adafruit Motor Shield V2. To avoid obstacles a HC-SR04 Ultrasonic sensor mounted on a SG90 Servo continuously scans the area.

This library is a Arduino-friendly version of TinyUSB stack. It is designed with structure and APIs that are easily integrated to an Arduino Core. There are 2 type of supported cores: with and without ...

Or, you can buy an ultrasonic cleaning machine and let it do all the work instead. These countertop contraptions—which we have not tested—claim to dislodge food bits, bacteria, and the like ...

Ultrasonic sounds are high-frequency sound waves that exceed 20,000 hertz, making them too high-pitched for human ears to detect. These sound waves vibrate more than 20,000 times per second. Doctors ...