But in the days of Apollo, there was no Arduino. In fact, there were no Integrated Circuits. And Apollo missions went all the way to the moon- far too distant for relatively simple Radar measurements.

While a well-known use of this is sonar, ultrasonic sensors can also be put to use to make a radar-like system. This ultrasonic ... degree field-of-view and an Arduino takes and records ...

HiRain Technologies, a leading provider of intelligent driving system to the Chinese automotive market, today announced the launch of the LRR615, a production-intent long-range imaging radar system ...