But it is possible with Arduino provided each individual sample is very short much less than 1 second.
What is the advantage of using Arduino?

First learn to use 1 pair of 4 non-blocking functions I included.  Can you find them?  Slow or fast pair?

Once you get that working, duplicate the pair, changing the global variable names and pin constants.

Let me know if you need more help...

Of course you're all correct.  At 10C you would have a very short cycle life.

It would be impossible to maneuver QUICKLY.  Maybe it would be more stable in theory?

Here's the code:
https://gist.github.com/sbright33/4178431

No thoughts today sorry!

Here's an Alternative that is free:
http://arduino.cc/forum/index.php/topic,161960.msg1217180.html#msg1217180

Love the Imp!  I'm on my 10th project in under a month...

http://electricimp.com/product/

The only difference is the coil resistance.  You can hook a 5v motor to a 12v supply only if you use code similar to mine!  If you don't change the code it will overheat in a few minutes.  More speed and more torque.

http://arduino.cc/forum/index.php/topic,89159.0.html
In degrees.

Mine goes 30RPM using 12v
http://arduino.cc/forum/index.php/topic,89159.0.html
http://arduino.cc/forum/index.php/topic,85335.0.html

Some motors have 4096 steps.  That makes the code much easier because it is an integer.

Not sure I included the code in the post to run 2 motors at once.  How did you modify it Chris?

I don't think my code is compatible with A4983.  Try it with ULN2003.

Just download my code from Gist.  Try one function call at a time in Loop() until you get the hang of it.

Sorry I didn't realize it wasn't a public forum.  Here's the code to show how easy it is on Electric Imp:

Agent:
function sendTwilio(){
local response =
http.post("https://api.twilio.com/2010-04-01/Accounts/ACae249c17f97/Calls.json",
{"Authorization":"Basic QUNhZTI0OWM4OWYwZjA4NDg2OTBjOTRhN"},
"From=%2B18055551212&To=%2B18055551313&ApplicationSid=AP5714e4d49").sendsync();
if(response.statuscode==201) server.log("Calling soon");
else {
server.log(response.statuscode);
server.log(response.body);
} }
device.on("sendit",function(s) {
sendTwilio();
} );

function mywebserver(request,res){
t<-http.urldecode(request.body);
device.send("sendbody",t.TranscriptionText); //speak.xml
res.send(200,"okay");
}
http.onrequest(mywebserver);
server.log("Start Agent");

Device:
imp.configure("Call1", [], []);
agent.on("sendbody",function(value){
server.log(value);
});
agent.send("sendit","notused");

//All you need to setup is line 3,4,5
//Account ID, authorization Base64, From, To, App ID
//The App can run any Twiml script you like:

<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Say voice="woman" language="fr">
Please leave a message BEFORE the tone.</Say>
<Record maxLength="20" action="x"
transcribeCallback="https://agent.electricimp.com/o0oLaaaa&quot; />
</Response>

I already wrote 4 related functions that are non-blocking can you find them?

I've done this with Electric Imp.  Only a few lines of code.

http://forums.electricimp.com/discussion/937/speak-to-your-imp-over-the-phone#Item_10