Most low-cost ultrasonic sensors only report distance in a single fixed direction. This project adds a servo to sweep the sensor across a 180° field, then reconstructs that sweep in real time into a ...
delay(10); // waits 10 ms for the servo to reach the position time += 10; // waits 15 ms for the servo to reach the position ...
Last September, Denmark was gripped by a spate of drone sightings near airports. It’s familiar territory for Hackaday, as we reported on a similar drone panic saga at British airports back in the last ...
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