Today we are going to make an Arduino-based sonar machine. This mini radar detects the distance and direction of the objects as well as a regular-sized radar. Stay tuned for our next episode!

But we may be getting closer to [Dr. McCoy]’s experience with this radar-based respiration detector ... the 2.8V levels of the module to the 5V Arduino Uno. In the video below, [Øyvind ...

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