Arduino - Magnet Levitation

[nickshavermatson]

Could you put a potentiometer on one of the arduino's input, read its analog value, and use that value to offset the value returned by the hall effect sensor, thereby allowing you to manipulate your levitated device? And, beyond that, build a grid of your devices and use them to manipulate your object in three dimensions?

[no1unorightnow]

For a first project, this is quite impressive. Even if it were third or fourth, it would still be quite good.

My first project can not compare - nowhere near this advanced.

(Rated: 5 stars)

[weirdo558]

i saw a youtube PID library that could work to stabilize your output. pid controllers are normally used to control temperature, but the code looked very flexible and could probably be easily adapted to this. look on the forums for it.

[jawsman89]

awesome!

[npozar]

Thanks for the views. At the moment, I'm developing a way to damp those annoying oscillations and it looks pretty good. I'll post an update soon and also, I'm gonna post a detailed description together with the source code.

[fredpereira88]

@npozar

How are you controlling the current flowing to the inductor? Maybe I can help you with that ( watch my video submissions! )

[MonkiApe]

The coil will get very hot for long period of use.

[npozar]

Fortunately, it doesn't. And I had it on for long periods while testing. It's a coil from a 12V push-type solenoid and I'm using a 12V power supply. Moreover, the field is pulse-width modulated. The duty cycle is around 50% most of the time

[MonkiApe]

Wow seems like you have perfected it. I go to exhibit a lot and i saw a lot of products that does that for display. The device that enable it to do that does heats up a lot. I guess i was wrong.

[Mike73Cook]

Excellent, it should become a technio You Tube classic.