OSOYOO Ultrasonic Levitation DIY Kit:mastering solder悬浮

This is a mastering solder:Ultrasonic Levitation DIY Kit It will help you practice soldering skills, to become familiar with a variety of electronic components, and provide you with dynamic results. If the circuit has been assembled and soldered properly, LED will light on, and four balls will levitate. Ultrasonic standing wave suspension is that there is a certain distance between the ultrasonic transmitting end and the reflecting end (oranother transmitting end) (called the resonant cavity distance),and thetransmitted wave and the reflected wave (or another acoustic wave) are continuously superimposed to form a standing wave.The acoustic wave force on the object at the standing wave node overcomes the effect of gravity and finally achieves the effect of suspension.