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

What’s the radar enthusiast to do? While it’s not radar, subbing in ultrasonic sensors is how [Dzl] built this sonar imaging system using a lot of radar principles. Initial experiments ...

They rebuild one of the most iconic components for an electronics tinkering beginner — an ultrasonic distance sensor, and what’s fun is, it stays fully functional after the rebuild!

(Read: The danger of blind spots.) Many new cars have ... That is especially true with the sensor models we tested. The ultrasonic systems were generally the most sensitive, but their performance ...