Bubbles Machine
If you have a small fan this machine can help you make bubbles.
https://www.youtube.com/watch?v=XWeCTKWzjJo
What Do You Need?
CD x1
plastic box x1
plastic lid x1
Wires x6
Arduino board x1
28BYJ-48 stepper motor x1
ULN2003 driver x1
small fan x1
bubble mixture
Assemble Arduino Board
CD
Drill six holes in the CD with electric drill.
Fixed
Drill a small hole in the lid and stuck in 28BYJ-48 stepper motor. Stick the CD on the lid. Then fixed stepper motor on the plastic box.
Code Writing
https://create.arduino.cc/editor/isaaa/c673ba00-8284-4a54-9426-86be18869e8c/preview
Done!
Put bubble mixture in the plastic box.