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

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 ...