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  • lim jeong commented on Asier Marzo's instructable Acoustic Tractor Beam10 months ago
    Acoustic Tractor Beam

    I have confirmed everything you mentioned. I could successfully levitate by adjusting the output voltage lower than 25V. When the mass of styrofoam was small, the load was stable when it was smaller than the 25V output. I am still trying to find the proper voltage. I came to think that 25V is not always the right answer.Thank you Asier.

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  • lim jeong commented on Asier Marzo's instructable Acoustic Tractor Beam10 months ago
    Acoustic Tractor Beam

    Hi Asier,Please point out the problem of my work.I made a beam tractor according to your instructions. However, Styrofoam does not levitating. It is only bound to and fro. I performed the step 20 faithfully. The transmitter was verified with an oscilloscope. I confirmed that the phase by the left connection and the right connection of the transmitter.I have made an acoustic levitator successfully, so The circuit connection of beam tractor work is connected differently from the manual. I did not remove the L298N pin in step 16. I connected 5V + and - directly to Aduino on the L298N. The L298N has a total of three ground connections. The first is transmitter (-), the second is Aduino (-), and the third is DCConvert-out (-).Is there a problem with this connection?If there is no problem wi...

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    Hi Asier,Please point out the problem of my work.I made a beam tractor according to your instructions. However, Styrofoam does not levitating. It is only bound to and fro. I performed the step 20 faithfully. The transmitter was verified with an oscilloscope. I confirmed that the phase by the left connection and the right connection of the transmitter.I have made an acoustic levitator successfully, so The circuit connection of beam tractor work is connected differently from the manual. I did not remove the L298N pin in step 16. I connected 5V + and - directly to Aduino on the L298N. The L298N has a total of three ground connections. The first is transmitter (-), the second is Aduino (-), and the third is DCConvert-out (-).Is there a problem with this connection?If there is no problem with this connection, where do I find the cause?I have not used the product you suggested. Is it a problem with the transmitter?I guess the transmitter is working normally. If 25V is supplied to the L298N, should the signal output to the transmitter be 25V?I look forward to your kind statement. Thank you Asier.

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  • lim jeong commented on Asier Marzo's instructable Acoustic Tractor Beam11 months ago
    Acoustic Tractor Beam

    hello, Asier.i would like to make this one, but i have got some questions.the first, may i use this sensor ( https://goo.gl/SKZUPv )the second, Do I need to install six sensors in the middle? and If it is right, Do I need only 24 sensors?

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  • lim jeong made the instructable Acoustic Levitator1 year ago