ultrasonic-speaker

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mcore1976 / rp2040-parametric-directional-speaker

This is the cheapest and the simplest in the world Parametric Directional Speaker based on RP2040 board, TPA3116D2 amplifier and set of 10+ ultrasonic transducers

raspberry pico rp2040 raspberry-pico rp2040-zero tpa3116d2 parametric-directional-speaker ultrasonic-speaker directional-speaker xh-m543 ultrasound-speaker parametric-speaker ultrasonic-microphone parametric-microphone

Updated Aug 25, 2025
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HimC29 / arduino-acoustic-levitator

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An open-source acoustic levitation system capable of suspending small objects (like styrofoam beads) in mid-air using sound waves. This project utilizes 16mm ultrasonic transducers, a DRV8833 motor driver, an MT3608 boost converter, and an Arduino R3 microcontroller, housed inside a custom 3D-printed enclosure.

arduino embedded project motor ultrasonic acoustic ultrasonic-transducer drv8833 acoustic-levitation ultrasonic-speaker acoustic-levitator

Updated Jul 13, 2026
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