Introduction: Easy Acoustic Levitator

About: Electrical Engineering and Radio Communications.

Today I will show you how to make an easy acoustic levitator using ultrasonic sound produced by an HC-SR04 rangefinder and an Arduino. It can float small balls of styrofoam. Its a fun and easy project to make with your kid or have a creative gift for a maker in your family.

Step 1: Materials Needed

  • 1x HC-SR04 Ultrasonic Sensor Distance Module

(amazon) Pack of 5(ebay) Single

  • Arduino (nano and uno work, others probably will)

Step 2: Tools

  • Desoldering Pump/Wick
  • Soldering iron
  • Computer with Arduino IDE

Step 3: Desolder Transducers

Take your desoldering pump, soldering iron and ultrasonic module. Desolder the two transducers. If you need help doing this see step 3 of: The Ultimate Guide to Desoldering

Step 4: Prep Arduino

  1. Connect pin D10 to D11. Connect one transducer to A0 and A1; and another transducer to A2 and A3.
  2. Connect the arduino to the computer and open the arduino sketch.
  3. Select the proper board and com port then upload

The sketch was created by Asier Marzo

Check out his instructable

Step 5: Finishing Up

Power up the Arduino and place the sensors about 1/2-1/4 inch apart.

To place the styrofoam ball use a teabag.

Arduino Contest 2017

Participated in the
Arduino Contest 2017

Homemade Gifts Contest 2017

Participated in the
Homemade Gifts Contest 2017

Design For Kids Challenge

Participated in the
Design For Kids Challenge