Self accelerating reed switch magnet spinner.

[Magluvin]

But seriously... this driver, including the power mosfet, has less than ten dollars worth of parts!
TL082,    0.71 (DigiKey)
4017,      0.52      ''
555,        0.43      ''
IRFP360, 3.79      ''
NE-2E      0.32 (Mouser)
10-turn trimpot 2.49 (Mouser)
some scavenged parts from old TVs (cap, relay coil)  free

Mini USB Nano   $6.98 free shipping.   Need to solder the headers.  For a few bucks more assembled.    

http://www.ebay.com/itm/Mini-USB-Nano-V3-0-ATmega328-5V-Micro-controller-Board-Arduino-compatible-/181233866050?pt=LH_DefaultDomain_0&hash=item2a32615542

Not that bad is it?

Mags

[TinselKoala]

Did you remember to add the cost of the computer you need to program the Nano? What about some kind of display?

[Magluvin]

Did you remember to add the cost of the computer you need to program the Nano? What about some kind of display?

Lol I dont think a computer is that big of an issue for most readers. If they have a computer, then there is serial output to the monitor to see variable changes. Once the thing is programed to do what needs to be done, no pc needed. Then it is back to meters, scopes, etc. to show results once optimized.

Mags

[Magluvin]

By the way. Not asking you to build anything. Ill be showing some stuff with duino's soon.

Mags

[synchro1]

@Magluvin,


          Practically everyone one has at least two working computers and one in the garage. You need a computer to participate on this web site. Don't grow discouraged. I know why you're picking flack up, and I believe it's undeserved. Keep on truckin!