Has anyone worked with these servos?

Specifically:

 AX-12+ Smart Serial Servo available rfom http://www.robotshop.com/robotis-ax-12-smart-servo-1.html

http://www.robotshop.com/PDF/robotis-bioloid-dynamixel-ax-12-manual.pdf

It claims to be RS485, but can via a 74HC126 be configured for half duplex ttl...  I'm just wondering if anyone has any experience with them..  229.2oz-in of torque, 300' or continuos(software config) also gives feedback as to position, speed, temp, and lots more for $45...  Too good to be true?

I am about to start working on one. Did you ever find a starting place? If nothing exists, i am going to be writing a lib for mbed if all goes as planned.

Never ordered them..  They look great, and would be fun to work with but I didn't have enough time to do the research before making the purchase so I went with these instead... http://www.servocity.com/html/spg645a-cr_continuous_rotation.html   They're a little better suited to my requirements, with the exception of the nice position,etc. feedback the bioloid servos give...

I'd love to see what you get going with them..!

Hi Scott,

I ordered some of these, they just turned up. before I start hacking them from scratch, I thought I'd ask how you've got on so far, and if there are any gotchas i should be looking out for?

Cheers,
Chris

Hi Chris,

I got as far as creating a unidirectional uart out of UART1 with flow control. I created the circuit described in the manual of the AX-12+ for communication.  I am willing to share what I have, and perhaps we can work together to make a motor spin. I was planning on making a public lib for them when I was done. I will be spending some time on it this weekend...

-Scott

My AX-12A showed up just today.

Do you all have any luck getting code written for this puppy? Otherwise, I guess I'm going to have to dive in too.

Thanks, Jim

Update: Guess I should have looked a little harder:

http://mbed.org/users/chris/libraries/AX12/lpgd86