Apple Watch Blood Oxygen Sensor Returns: How to Use It and What It Can Tell You About Your Health The smartwatch's Blood Oxygen app lets you measure the oxygen level of your blood on-demand. It's ...

This paper provides details about the design and operation of a Collision Avoidance System in smart cars, with the Arduino board as the central control unit, interfaced with an ultrasonic sensor, LEDs ...

Ultrasonic fingerprint sensors are taking smartphone security to the next level, offering reliable and fast unlocking even in less-than-ideal conditions. If you’re interested in experiencing ...

Its main technical features include cavitation-driven washing, strong particle clearance from bubble collapse, enhanced penetration, and non-contact cleansing using ultrasonic energy.

A dual-microcontroller rover that autonomously detects humans using a thermal camera and PIR sensor, sends GPS coordinates via GSM, and avoids obstacles using ultrasonic and gyroscope data. It supp ...

Looking for an alarm system to make you feel more secure? We've tested all the best professional and DIY home security systems to help you decide which is right to protect your family and property.