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  1. Question(s) Re: Goal torque on MX28-T protocol 2.0 & benefits of protocol 2 over 1?

    What I have seen and believe is if your servo is configured for Protocol 2, you must speak protocol 2.

    That is for example if I use some XL430-w250 like servos, and have one lets say ID #1.
    ...
  2. Question(s) Re: Goal torque on MX28-T protocol 2.0 & benefits of protocol 2 over 1?

    With questions like this, I often suggest that you ask them on the Robotis Forum: http://en.robotis.com/service/forum.php

    I assume you are looking at their control table:...
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    Re: Unity Robotic Controller

    But maybe now it might be time to learn more about ROS2... It uses more standard lower level communications (DDS) and they are setting it up to be able to be installed on Linux, OSX and Windows:...
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    Question(s) Re: Problem phoenix code for my hexapod

    Sorry to say, I have not touched RC servos in a very very long time.

    What you probably need to do is figure out the calibration differences between the two types of servos.

    That is you need...
  5. Question(s) Re: multi versions tested still lost all tibias

    Sorry but I don't follow this forum as religiously as I used to. It feels more like a ghost town as compared to what it used to be.

    Glad you have it working
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    Re: Phantom_Phoenix on OpenCM 9.04...

    Sounds good. Serial1 is used for DXL servos connected directly to the 904 board. Serial3 is used if you have your board connected to a RS485 expansion board. I have a few of the expansion boards,...
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    News/Announcement Re: The Robotis TurtleBot3

    Thought I would mention, that ROBOTIS has been busy with the TB3.

    Right now I am going to try using an RPI3+ as I fried the UP board I had on it... Something about supplying 12v to the Expansion...
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    Re: Phantom_Phoenix on OpenCM 9.04...

    Thought I would mention, I have setup the PhantomX 3 with an OpenCR board. I am using it to test out some of my changes OpenCR Arduino code base. I have now tried it using the Commander having the...
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    Question(s) Re: Replace stepper motor with XM430-350

    My guess is no. That servo wants a 5v half duplex serial signal...
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    Re: Phantom_Phoenix on OpenCM 9.04...

    It has been a while since I have tried running it.

    Although currently getting ready to try out the code again up on https://github.com/KurtE/Open_CM904

    But will be verifying that the code...
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    Re: MX-64 Giving ID Problem

    Unclear, you might want to ask up on Robotis forums: http://en.robotis.com/service/forum.php

    Could be wrong baud rate, Could be the Servo is setup for Protocol2 instead of 1, or ...

    If it were...
  12. Question(s) Re: Dynamixel XL/XM on WX250 Arm: Can't writeWord to Change Position, Velocity

    Again as I have mentioned, the OpenCM IDE is their older setup and I don't believe they are making any updates to it.

    They are now going the more standardized approach of adding their stuff to...
  13. Question(s) Re: Dynamixel XL/XM on WX250 Arm: Can't writeWord to Change Position, Velocity

    Forgot to metnion.

    You say that you are using an OpenCM9.04? Are you using their older IDE or are you using Arduino IDE? They are now only supporting the Arduino IDE.

    Which library are...
  14. Question(s) Re: Dynamixel XL/XM on WX250 Arm: Can't writeWord to Change Position, Velocity

    For many of these things you may want to ask on the Robotis Forums: http://en.robotis.com/service/forum.php

    If you look at the control table for the servos, example:...
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    Re: New XL430-W250-T DOES NOT MOVE

    Glad it is working now.

    As I mentioned on the Robotis Forum, that was maybe the third things I suspected. The first is almost always Power.

    The second was improper packets, especially since...
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    Re: New XL430-W250-T DOES NOT MOVE

    Note discussed on Robotis forum http://en.robotis.com/service/forum_view.php?bbs_no=2406951&page=2&save_sca=&sca=&save_stx=&stx=&sfl=
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    Question(s) Re: Hexapod Randomly Freezes

    I am glad you have it working!

    Yes many times it is the simple things that you don't check for, that get you.

    Example: I have been playing around with the OpenCM base code to try to improve...
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    Question(s) Re: Hexapod Randomly Freezes

    Often you can inspect the wires and see if there looks like a cut or crimp in them. I had a few that went bad, due to me not being careful on how the wires were run. The worst one was one that I...
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    Question(s) Re: Hexapod Randomly Freezes

    Again Hard to say...

    I am guessing that maybe more than one servo reset itself to have ID #1, which confuses things... Or maybe one of the servo wires has a short in it. Sometimes it can be...
  20. Thread: Turtlebot2i

    by KurtEck
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    Re: Turtlebot2i

    I believe the Trossen one has a more advanced Real Sense camera than you could get with the Robotis original Turtlebot 3 Waffle, but maybe following their instructions for using/setting up the...
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    Re: PhantomX controlled by a Raspberry Pi

    I am sorry, I don't fully understand your question:

    First to configuring RPI to do Serial communications using the expansion connector. Some of this depends on which RPI you have. For example...
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    Re: PhantomX controlled by a Raspberry Pi

    OpenCM board, just plug it into the RPI board, it will show up something like /dev/ttyAMA0
    Which you can open up and communicate.

    Depending on wjat upir needs/desires for the board. You could...
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    Re: The task (lawn mower topic)

    Looks like it is working great!

    Would be fun to do, but probably would not work on my yard. Most of my mowing is doing rough trails, where at most I run over the same part of the trail twice. ...
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    Re: PhantomX controlled by a Raspberry Pi

    Again if you are having issues with the power and the like, it might help to see photos of the actual hookups. Yes you should be able to power through the expansion connectors, I have done it with...
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    Question(s) Re: How to Configure 3 XBEES in a mesh

    As may be obvious, I do like working with Teensy boards. Yes the T3.5 and 3.6 have lots of Usarts (actually 6) and again USB serial port

    The OpenCM boards are nice in that they are already setup...
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    Question(s) Re: How to Configure 3 XBEES in a mesh

    Sorry I have not done anything with the XBEE mesh stuff Or actually I may have looked at it at one point, but never actually did anything with it...

    The Arbotix board only has two usarts, one...
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    Question(s) Re: avrdude: verification error, first mismatch

    The only firmware for this is the Bootloader. Which is what Arduino command is trying to do.

    And on my machine the Arduino install that I am using (My own for 1.8.5), the files are installed at:...
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    Question(s) Re: avrdude: verification error, first mismatch

    Again not sure what to tell you. It looks like your setup is correct.

    I could not tell what version of Arduino you are using. Probably should not mater.

    I did drag out my setup, which is...
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    Question(s) Re: avrdude: verification error, first mismatch

    I could not tell from your pictures if this is the same ISP Programmer that Trossen sells? If it is than the AVRSPI mkII (serial)
    Is the correct Programmer to choose and you do need to select the...
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    Question(s) Re: avrdude: verification error, first mismatch

    Sorry, not sure what is going on. In your above picture I don't see the power LED on? Was the board powered and the LED lit?
  31. Question(s) Re: Problem with control of Dynamixel AX-12A by using MatLab

    Sorry, I am not a matlab user so I don't know, maybe someone else up here might...

    I would suggest that you post issues like this up on the Robotis Forum: http://en.robotis.com/service/forum.php
    ...
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    Question(s) Re: avrdude: verification error, first mismatch

    Hopefully the ISP programmer will fix the problem!

    How to use it, depends on which ISP you have. You need to follow their instructions on how to install, depending on your computer/OS.

    Once it...
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    Question(s) Re: avrdude: verification error, first mismatch

    You might email support to see if they can help or give you other suggestions.

    Things I would check and/or do: (Not necessarily in this order)

    0) Do you have an XBee plugged into this board? ...
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    News/Announcement Re: The Robotis TurtleBot3

    And thought I would mention, they also have created a new online ROS course for beginners:
    ...
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    News/Announcement Re: The Robotis TurtleBot3

    I am having fun with it. Lately been doing more with the underlying board (OpenCR). I will get back to doing main turtle stuff soon.

    You can obviously do it either way. It is sort of nice...
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    Question(s) Re: Problem to reed torque value from Dynamixel

    It is hard to give you any complete answer without knowing the current code and the how all of the servos are configured. It might help to see hopefully a small self contained program that...
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    Question(s) Re: Problem to reed torque value from Dynamixel

    Hi @urko_18,

    Sorry I missed your last post on this a couple months ago. I see you asked the same question recently up on the Robotis forum:...
  38. Re: Simultaneously run 2 or more Dynamixel Motors via OpenCM9.04

    With questions like this you might want to ask it on the Robotis forum: http://en.robotis.com/service/forum.php

    Simple answer: Yes you can control multiple servos.

    Hard to give any complete...
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    News/Announcement Re: The Robotis TurtleBot3

    Not sure if anyone is interested, I extracted the alternate pin information from the processor manuals for the OpenCR and combined it with the Arduino pins information, to be able to see what...
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    News/Announcement Re: The Robotis TurtleBot3

    Thanks for the heads up.

    I have not had not tried to have the wheels turn for a bit as I am still playing with the firmware for the openCR board.
    I have another SPI port working on the...
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