Acoustic Levitator DIY – TinyLev – levitate liquids and insects at home

Acoustic Levitator DIY – TinyLev – levitate liquids and insects at home

Today we will show you how to build a simple
acoustic levitator For more information check the video description
it can levitate liquids and solids so let’s get started first of all 3Dprint the attached
file without support clean the base using a file and drill two holes at the sides now
we need to mark the polarity of the transducers for doing so attach one to the scope and poke
it with a thin wire if the spike goes up mark the positive leg if the spike goes down mark
the negative leg for doing it faster attach two copper strips to the table and attach
the probes to them glue the transducers into the sockets with the marked legs pointing
inwards wrap exposed wires around the pins in six
concentric rings to secure the contacts solder the pins to
the wires we need four long wires with one side exposed and three exposed areas on the
other side solder the black wire to three non-marked legs and the red one to three marked
legs solder to secure them you can tin the other sides solder the headers of the arduino
backwards and program it with the provided source code now you can glue the arduino and
the driver for the power supply get a positive wire and a negative wire and solder them to
the DC barrel you can apply shrink tubes to make it more secure solder the other end of
the negative wire into the switch and another wire into the switch apply shrink tubes and
tin the ends glue the dc barrel and the power switch connect the possitive power supply
into the first socket of the driver connect the ground and the ground for the arduino
into the second socket and the five volts for the arduino into the third socket put
a jumper between D10 and D11 provide the ground and voltage to the arduino now connect the
signals A0-A3 to IN1-IN4 and leave a free wire connected to ground to test the driver
connect it to a power supply and test with a scope output 1 and output 2 or output 3
and output 4 please be sure that there is no shortcut between the red and black wires
to test the transducers connect the red and black wires to the driver switch it on and
connect two transducers to two probes be sure that the possitive go to the marked legs all
the transducers should be emitting and in phase you can correct mistakes by bridging
transducers or by desoldering them for optimum operation swap the wires and pick the one
with minimum power consumption now that everything is ready you can secure the wires with hotglue
and glue the legs never apply more than 10 volts for solid particles you can use a tweezer
or a small metallic grid if you connect ground to D2 the particle will go down to D3 will
go up and D4 it will reset for trapping liquids you may need to reduce the voltage otherwise
droplets may pop put a tiny Styrofoam particle to guide your placement use a syringe with
a 1mm needle bent and with the tip removed be sure to have fabric on the bottom to avoid
damaging the transducers when the droplets fall

55 thoughts on “Acoustic Levitator DIY – TinyLev – levitate liquids and insects at home”

  1. amazing project man. I'll save your video and instructables, hopefully i can make one for myself one day. It doesn't look too complicated although im sure it harder than you make it look heh

  2. 2 questions:
    1: What is the purpose of the acoustically transparent fabric?
    2: Having someone print the STL file, is too pricy. Would I be able to make this work with a flat array if I were to put in the effort to make it work? From the research I've done so far, yes, but I still have a bit to learn about the physics before I invest.

  3. Does the circuit put out square waves or sine waves to the transducers? I saw both flash by on the scope. Also, why is it nessecary to use ultrasound? Why couldn't you use two piezeo tweeters and 10kHz? Then the size of the object could be 4 times as large

  4. Looks like a great project ! I would like to build with my son. Any recommendations for a UK supplier of the transducers – you mention cost about $80, but at RS components it is £290 just for the transducers ?

  5. Hi, What would happen if i put some ferrofluid in the middle ? a magnet ?
    i was thinking to put some ferrofluid in a cylinder and make the liquid move. Is this possible ?

    Or could it be possible to code the magnets for making spin the liquid in the middle ? The liquid stay in the midle but the magnetic field make it spin ?

    I'm thinkink about that for an code project in university in art program.

  6. Through making your original design I found the easiest and fastest way to check the polarity of the transducers is to just hold them up to your mouth and create an input signal by making a popping sound with your lips. It cut a lot of time out of the process and I wasn't worried about damaging them by poking them.

  7. Hello,
    The supplier asked me these questions and I'm not sure of the answers to the second two.
    1,what is the size do you need?
    10mm or 14mm or 16mm?
    2,do you need plastic case or aluminium case?
    3,do you need the function of transmitter and receive to combined or separately?
    4,do you need it to be sealed or not?

  8. Great Project. We just finished building one before christmas, everything worked on the first try. Really great work and instructions!

  9. Hello , my name is An-ichat , i'm french and i live in france , i would like to do an acoustic levitator for my school project . can you help me please , it's something very important for me . Sorry , i have a ver bad english.

  10. I can't wait to get a kit or two. I am a maker in western canada. I am sure the members in my makerspace would go bananas over them.

  11. So is this like weightless? I mean if it was scaled up to fit a person, would it feel like micro gravity with no weight on internal organs etc?

  12. Hi, I recently made the minilev but the object can't levitate. I tested the transducers with an oscilloscope and they work well. I think the problem is with the voltage. Can you tell me how to increase it?


  13. I saw and followed the manual that you provided. But it failed. I bought the sensor I bought here (
    Could the sensor cause a problem?
    The Aduino and L298N Dual Motor Drive Board made a square wave like you showed. However, when two sensors were facing, a sine wave was not formed.
    What is the frequency when a sine wave is made?
    And what was the voltage of the sine wave?
    Where is the current value of Step 19 measured?
    And are transducers and transceivers the same?
    I want to make it really successful.

  14. We are having trouble levitating liquids. We have a bent needle with the tip removed but it is not working, the droplets keep falling. Can you tell us what liquid you are levitating in the video, and do you have any other tips?

  15. What if we want to use 15mm transducers instead of 10? What changes do I need to make in the 3d base?

  16. The file for programming the Arduino isn’t working properly for me, do you know what kind of application I need to fix this?

  17. I believe you forgot "Slappa Youself!!11!" when you discover that you wired a few transducers backwards :-/

  18. Hopefully there is another video describing how to make ultrasonic earmuffs for your poor pets :'(

    #AAAggghhTooLoudForKittehAndPuppeh!!! :'(

  19. wow, i´d like to rebuild this according your manual. Where can I buy the equipments, esspeciallyy the 3d print out model?

  20. What does "solder the headers of the arduino backwards" mean? I don't know what soldering them forwards would mean.

  21. I have an idea i'd like the designers to try, making the precisely positioned speakers spin. All same direction, opposites etc etc . I wonder if it would make a difference to nodes. Would the focus power be stronger, could it hold more weight.

  22. i could not download 3D design and the Code also cuz i don not have premium account …. can any body help me …i will be very thankfull

  23. Sir I theoretically deducted that human can control quantum level of objects and can do telekinesis. I can do telekinesis in the brain wave of delta and gamma, your experiment of using sound wave to control object really caught my interest. I will explore more scientific theory that you provided:) and maybe contribute to the physics in the future, the 10th dimensions theory is really fascinating to me

  24. Hello, Asier, how are you? our levitator is very noisy and we have tried to repair in all the ways but we do not know, do you have any indication that it is?

  25. Hi, I am working on a project involving this kit. Do you know if it is possible to create acoustic Vortices using this design, but with modified hardware?

  26. which physical variables of the acoustic wave gets varified by changing the voltage? and how does this effect the levitation of the objects?

  27. Since these speakers operate at 40,000 HZ, should we be careful around pets (e.g. dogs)? These animals tend to be able to pick up ultrasonic frequencies if I'm not mistaken.

  28. Suggestion: the levitand should be kite-like and perforated, especially for lower pitches and greater/heavier objects, if levitation works on the Bernoulli effect.

  29. Why does your paper talk about radiation forces? when there should only be conduction and some convection.

    There are no theòries on points, as a theòry by definition is a proven hýpothesis and points don't exist. There are only nonzero noninfinite volumes or regions.

  30. the polarity is labeled at the back of my speakers with a "+", is this reliable or should i doublecheck? thanks for that awesome project!!

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