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

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 ...

With many modern cars coming equipped with an array of ultrasonic sensors mounted in the bumpers, it stands to reason that many junk yards have them too. [jimk3038] points out that, unless they ...