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Thanks - gotta get me one of those...

Does anyone know or know how to determine the power draw for AX12A servos that aren't being driven? I.e. set with torqueEnabled = false. We're powering the Master arm with 4 AX12As and trying to...

Thanks for all the help in looking into this. I think the problem I faced just running the attach code and failed servo calls were due to a bad board. Using the same code and wiring on another (3rd...

I want to try and recover an Arbotix-M that seemed to go bad (can't upload via FTDI). I want to try restoring the bootloader with an ISP but the one I have has 10 pins instead of 6. I found this...

It seems like it's my Arbotix-M. As I said it worked on another board when I only had the AX12As and servos installed. I thought it may have been all the wiring on the first board that was causing...

Do you think there might be a capacity problem of having 7 AX12As driven in a slave arm, 9 pushbuttons, 1 toggle, 1 potentiometer and 4 AX12As as a master arm be too much for the Arbotix-M?

So it doesn't appear to be software related. I used another Arbotix-M and just plugged in the dynamixel serial cable and the servo (along with the 5V jumper) and it can read all the AX12A servos...

Thanks for your reply and help Kurt.

Yes - Arbotix-M and Arduino 1.6.10

It works (i.e. AX12A servos can be called without error when the servo is plugged in but the servo attach function is not...

I'm trying to attach a micro servo to my PhantomX robot arm and am having issues attaching the hobby servos. Prior to attaching the servos to a pin (12-15), dynamixel calls work ok (e.g....

Thanks for the quick response and suggestions. I captured the position values of the tandem servos and the actual positions were pretty different from the 1023 - x theoretical position value. ...

Hi,
For the shoulder and elbow joints, the PhantomX Reactor Arm has 2 mirrored servos that work together to share the load. In trying to create a Master / Slave control, I read the position of the...

Thanks for the reply Tyberius,

I did get in touch with Trossen support and they tried to help me. I was going to order another board as a replacement / backup so they went ahead and included an...

I appear to be having the same problem with my Arbotix-M board. It's been working for a couple months but just all of a sudden it stopped working. I checked everything above already (except for...

Thanks again for the input. I'll give t his a try. Interestingly, I was able to use 5 servos / hubs to connect 6 250mm wires together and it worked fine. Perhaps it was a problem with the cable I...

Thanks for the idea. I'll need to get another Arbotix-M to try that but I have an Arduino Mega 2560 and a USB2AX on the way. It sounds like I might be able to do something similar with those...

Thanks for the reply. Right now I have them all on the same DXL bus and driven by one program. Loop basically gets all the servo positions of the master and then does a single dxlSyncWritePosition...

Hi!

I have a PhantomX Reactor Robot Arm Kit and am trying to control it with a Master/Slave system. The master arm is driven by the same Dynamixel AX-12A servos as the Slave arm and works fine. ...

Sorry, I see that this was asked in a previous thread here already:

http://forums.trossenrobotics.com/showthread.php?7501-Using-AX-12A-in-zero-torque-mode&highlight=relax

Unfortunately, it's...

I know this thread is a little old, but I am trying to something similar (master/slave control) and had a question about the torque off behavior of the AX-12A servos. I have the dxlFollower example...

I just received the PhantomX robot arm and had a question about using Turbo Fuse for securing the screws. If I plan to build the arm but then intend to either mod it or take it apart, should I use...