I ordered a Boost Converter from here:
It is supposed to make sparks, but it doesn't! I tried many things:
2 AA batteries in a battery pack: Nothing happened
Arduino 5V and GND connected to the boost converter. Nothing happened.
4 AA batteries in a battery pack: high-pitched noise from boost converter, but no sparks!
This is the SECOND boost converter I've ordered! And it still does nothing!
Help would be awesome!
Edit: Oh my God! I'm so sorry! Just corrected the link!
That's probably not something you should mess with when you don't know basic DC electric let alone about the device itself.
"High pressure type: the type of pulse current " -- output? input? Do you know? What will it do to sparks?
Hook a 5A 5V supply up to it and you may find that you can get hurt. The note says "Output voltage: 400000 v(Please pay attention to safety)".
If you want to make sparks, 12V will spark visibly. Learn to wind coils, make a Tesla coil, you'll get sparks. Even a Kelvin water-drop generator can make sparks.