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  1. A Phased-Array Ultrasonic 3D Scanner From Scratch - Hackaday

    May 15, 2021 · He finally arrived at a grid of 100 ultrasonic emitters controlled from an Arduino through a series of shift register boards.

  2. Arduino-Powered Missile System Uses Ultrasound To Aim

    Jun 13, 2023 · To supply targeting data for the launcher, an Arduino Uno uses an ultrasonic sensor pair mounted atop a servo. As the servo rotates, the returns from the ultrasonic sensor are plotted on a...

  3. Build A Parametric Speaker Of Your Own - Hackaday

    Mar 5, 2025 · The speaker itself is an array of in-phase ultrasonic transducers, and she demonstrates the result on her audience. This project is surprisingly simple, should you wish to have a go yourself.

  4. The Simplest Ultrasound Sensor Module, Minus The Module

    Nov 16, 2025 · Just about every “getting started with microcontrollers” kit, Arduino or otherwise, includes an ultrasonic distance sensor module.

  5. AM Ultrasonic Transmitter And Receiver - Hackaday

    Mar 6, 2018 · For the transmitter, he turned an Arduino Pro Micro into a USB sound card which he could plug into his laptop. That outputs both the audio signal and a 40 kHz carrier signal, implemented using...

  6. Arduino-Powered Trap Hopes To Catch Mice - Hackaday

    Sep 3, 2023 · To that end, it uses an Arduino Nano armed with an ultrasonic distance sensor to detect when mice have entered a plastic container. The container’s hinged door is is held open with a servo.

  7. Dead Simple Ultrasonic Data Communication - Hackaday

    Jun 1, 2018 · In the video after the break, [Eduardo] demonstrates his extremely simple setup for using ultrasonic transducers for one-way data communication.

  8. ultrasonic distance sensorHackaday

    Jun 1, 2024 · The treat in question is detected by an SR-04 ultrasonic distance sensor connected to an Arduino Nano. All in all this was a highly successful build as far as neighborhood entertainment value...

  9. Ultrasonic Sonar Detects Hidden Objects - Hackaday

    Apr 2, 2021 · This ultrasonic radar project is from [mircemk] who uses a small ultrasonic distance sensor attached to a rotating platform. A motor rotates it around a 180-degree field-of-view and an...

  10. ultrasonic transducerHackaday

    Nov 27, 2021 · An Arduino, a step up converter, an LDR, a couple of LEDs, a reed switch for powering it on via a magnet, and a large ultrasonic transducer, all powered by three alkaline AA batteries.