The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind ...

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 radar project is from [mircemk] who uses a small ultrasonic distance ...

While it’s not radar, subbing in ultrasonic sensors is how [Dzl ... but it’s still pretty cool. To make the simple range sensor more radar-like, [Dzl] needed to narrow the beamwidth of ...