Ultrasonic Levitator
thingiverse
This is a simple print for a ultrasonic levitator, code and parts in this link: https://www.heise.de/make/artikel/Einfacher-Ultraschall-Levitationsapparat-4022505.html I modify the schematic adding a lm7805 for voltage regulator and a 470mf capacitor. for adjust the distance use a long m5 screw with 3 nuts (all hexagonal) in the pdf you have my pcb desing for lm 293d and arduino nano.
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