I've just come across a no-name non-contact, high-precision 80 GHz mmWave radar sensor for liquid level detection with a 40m ...

Thus, they entered a heart rate sensor to our 2025 One Hertz Challenge! The build is based around a Wemos D1 mini, a ESP8266 development board.

Yes, it still makes plenty of mistakes, but it has become part of the job for many.

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 ...

A JSN-SR04T ultrasonic sensor, connected to an ESP8266 to calculate the water level in a water tank.

To perceive the human body’s multienvironmental mobility, intelligent flexible electronic equipment with an underwater motion monitoring function has potential research value in the field of ...