Easy Acoustic Levitator
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.
Materials Needed
- 1x HC-SR04 Ultrasonic Sensor Distance Module
(amazon) Pack of 5 (ebay) Single
- Arduino (nano and uno work, others probably will)
Tools
- Desoldering Pump/Wick
- Soldering iron
- Computer with Arduino IDE
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
Prep Arduino
- Connect pin D10 to D11. Connect one transducer to A0 and A1; and another transducer to A2 and A3.
- Connect the arduino to the computer and open the arduino sketch.
- Select the proper board and com port then upload
The sketch was created by Asier Marzo
Check out his instructable
Downloads
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.