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Hi all,
     I need to control 2X 24 volt 1 amp DC Brushless (4pole) Motors with a Mega.  I have scoured all around for a controller for these.  They are 3 wire motors.  Iv'e looked all around for a 24 volt ESC with no luck.  I have found a lot with high amperage lower volt ratings but none that accept 24 volt.  And I have found the megamoto shield that says it will drive them with 3 shields stacked.  That's a little costly if not needed.  It sucks because I don't need to handle much amperage and most the solutions I've seen are either pricey for huge motors of too low on the accepted input voltage.  I can't believe there aren't more controllers/shields for these 3 phase motors.  Thanks for any suggestions.
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I forgot to add the motors have hall effect sensors.  Thanks
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Just an update,  I did find a ESC.  Of course its 24 volt 80 amps lol.  I won't need hardly any power from it.  I will give that a try as they were $25 a piece compared to 3X$59 for the megamoto shields.  Will see how they work.
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Dubuque, Iowa, USA
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If you want a total DIY approach:
 
http://elabz.com/brushless-dc-motor-with-arduino/

If you only need 1A then you can use an L293 or SN754410 (36V capable) like the link above. The electronics are simple and the theory is pretty easy too; the difficult part is the software: timing of the outputs for the three phases (with acceleration and deceleration) and doing it efficiently enough to reach high RPMs.

Just an option to consider.
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You should post the link to the ESC you found. Someone else will probably wander over wondering the same thing.

 http://xkcd.com/979/
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