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    Re: Project of robotic Arm with dynamixel motors

    Again sorry, it is hard to offer very much advice without additional information. Like maybe post a small program that demonstrates what you are trying to do and the failure. Sometimes it is the...
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    Re: Project of robotic Arm with dynamixel motors

    I don't have MX servos and the GoalSpeed did not work very well on AX servos, but I thought it worked reasonably on MX servos.

    Have you tried setting it to a low number?
    ...
  3. Re: Open CM9.04 - Anyone had luck programming using the Arduno IDE?

    I thought I put in an update... But maybe not.

    I put this problem up on their github project as an issue and they have since then resolved it. Should be in the next release whenever that is...
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    Question(s) Re: USB2AX seems broken

    Not sure what else to suggest, other than if you have something like a RaspberryPI then you could try it out on Linux and see if it is working.

    The difficulty is that without seeing what the...
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    Question(s) Re: USB2AX seems broken

    Sorry, I am not a python person, so may not be much help. Also I have not used the USB2AX much with windows, mostly with Linux.

    But with Saleae logic analyzer you might try using a digital input...
  6. Question(s) Re: Trouble compiling arduino sketch using arbotix commander to control robot

    First question would be where did you get the pypose from?
    Maybe from Here? https://github.com/vanadiumlabs/pypose

    The difficulty is it does not look like Fergy is active at all on this any...
  7. Question(s) Re: Suggested charge settings for LIPO batteries that Trossen sells.

    Thanks @jwatte,

    Now to go check out all of those batteries.
  8. Question(s) Suggested charge settings for LIPO batteries that Trossen sells.

    As I am going to soon see if my PhantomX hexapod will walk using the OpenCM board I am going through my Lipo batteries, which have mostly sat around for a year or two or... I need to go through...
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    Re: Best Microcontroller at Trossen Robotics

    Best? Popular? Are you asking what is probably the best selling ones at Trossen or what do the different people up here like to use? Also may depend on usage? Like are you wanting to control AX/MX...
  10. Question(s) Re: Trouble compiling arduino sketch using arbotix commander to control robot

    Hi @darkback,

    Sorry I am not a python person either. But my quick look through it looks reasonable. I would say try it out on some simple project and see if what is produced compiles...

    As...
  11. Question(s) Re: Trouble compiling arduino sketch using arbotix commander to control robot

    You need to add more const declarations. And in the case you mentioned transistion_t is a type so you do not want to change it.
  12. Question(s) Re: Trouble compiling arduino sketch using arbotix commander to control robot

    What I have in some of my code looks like:

    const uint16_t cCoxaMin1[] PROGMEM = {
    cRRCoxaMin1, cRMCoxaMin1, cRFCoxaMin1, cLRCoxaMin1, cLMCoxaMin1, cLFCoxaMin1};

    Note the cRR...CRM......
  13. Re: Open CM9.04 - How to connect to AX (or MX) servos?

    Thanks Jwatte,

    As you probably know, I totally agree with you and what I have been doing as well.

    But trying to see how hard it would be to come up with a reasonably off the shelf setup that...
  14. Re: Open CM9.04 - How to connect to AX (or MX) servos?

    For the heck of it, I was playing around with diptrace today to see how hard it would e to create some form of minimal board for a CM904 to plug into in order to make it have a few of the things I...
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    Sticky: News/Announcement Re: ArbotiX 1.6 Files / Libraries

    Hi again, if you used the tician boards install and you have the programmer that Trossens sells, than his setup did not add in the definition for the that programmer. Problem is if you used to use...
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    Sticky: News/Announcement Re: ArbotiX 1.6 Files / Libraries

    Hi DarkBack,

    Wondering are you using McAfee Virus... (I have LiveSafe, but probably not for much longer).

    I run into this more when I am doing builds for a Teensy, but run into this. If you...
  17. Re: Open CM9.04 - How to connect to AX (or MX) servos?

    Thanks Tician,

    Right now playing with some double jumpers, where one side are 2mm and the other side the 2.54mm, I now have the XBee talking to the commander.

    As you probably can tell, I...
  18. Re: Open CM9.04 - How to connect to AX (or MX) servos?

    Quick update and questions...

    I did solder an 904a with the AX servo connectors, I also used double long breakout pins, such that I could plug it into the 485 board and be able to connect to the...
  19. Re: Open CM9.04 - Anyone had luck programming using the Arduno IDE?

    In case anyone is following.... On the above, worked on the new boards (at least the 2 out of 3 I have tried). It still does not work on my original board. Maybe it has a different firmware...
    ...
  20. Re: Open CM9.04 - How to connect to AX (or MX) servos?

    Thanks,

    I have a lot of those connectors sitting in my cabinet as well.

    I now have two of the Version A (Plus their connector set, a Version B and Version C.

    The Version C came with OpenCM...
  21. Re: Open CM9.04 - Anyone had luck programming using the Arduno IDE?

    Quick update: Sort-of answer for myself.

    Was able to get the Arduino to download, by using the firmware recovery method.

    That is you unplug all power, and while holding in the little button,...
  22. Open CM9.04 - Anyone had luck programming using the Arduno IDE?

    I was wondering if anyone has been using the current versions of Arduino (1.8.5) to program their OpenCM9.04 controllers.

    I followed the instructions given in:...
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    Re: Taking a journey with python3

    Again in all cases like this it would help if you actually show your complete programs and maybe pictures of hook up... As such that maybe someone can replicate your program...

    On my RPI3, I ran...
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    Re: Taking a journey with python3

    More hints, if the above does not work, then maybe time to add some diagnostics stuff to your code.

    Things like: Maybe have the Arbotix blink led once if it receives what you think is a valid...
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    Re: Taking a journey with python3

    Again I don't know python... But quick 2 second look again at pyserial reference, sounds like it is the same for Python2 and 3...

    And if your code is really like:


    port = '/dev/ttyUSB0'
    baud...
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    Re: Taking a journey with python3

    Again if you look at the c++ code above for checksum:
    int checksum = ~((id + 5 + AX_WRITE_DATA + regstart + (data&0xFF) + ((data&0xFF00)>>8)) % 256);


    ser.write(b'0xff')
    ser.write(b'0xff')...
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    Re: Taking a journey with python3

    Sorry, again I am not a Python person, but have edited a few Python Ros modules before...

    But again hard to give any real advice here without knowing the whole picture. That is What code is...
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    Re: Taking a journey with python3

    I am not a python person, so can not fully answer your question, but your output packet looks wrong.
    I believe you are trying to set the GOAL Position two bytes for all servos. Correct?

    First...
  29. Question(s) Re: PIN(s) to do an interruption in an arbotix-arduino

    I believe that all of the IO pins 0-31 can serve as an Interrupt pin on the Atmega644p. I might avoid pin 0 as it has the LED on it, but would probably work...

    You should be able to do something...
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    Interesting Re: Lewansoul LX-16A bus servo

    I am not sure if you are overpowering or not. I would think when it is saying 7.4v that it is implying a 2S Lipo, which when fully loaded can get you up to the 8.3v mentioned.... Likewise old RC...
  31. Question(s) Re: Dynamixel AX-12A won't actuate if the chain is longer than 6

    You mention using a Teensy 3.6, which is great board, but I am not sure if you at all mentioned, how your hardware is setup.

    Note: There have been a few different thoughts on what causes these...
  32. Question(s) Re: How obtain load/current data from Dynamixel

    Hopefully someone with MX servos can help you out here. I only have AX...

    As your message mentioned, I believe there is no sensor that measures this, but it is implied by looking at the current...
  33. Question(s) Re: Trying to add a gyro tot arbotix commander

    Sorry, don't have time right now to fully debug, nor is there enough information (like all of the code on both sides).

    But some of the things I would look at include:

    Why is it failing? Data...
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    Question(s) Re: Debugging phoenix code

    I have the VB code up as part of my Phantom_Arm code base...
    https://github.com/KurtE/Phantom_Arm/tree/master/VB%20Test%20App

    Warning it has been awhile since I tried it out, but it worked the...
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    Question(s) Re: Debugging phoenix code

    There are a couple ways I have done it in the past:

    a) Use a different board. That is why earlier I made a version of the bioloid library that could take use different serial ports and ran the...
  36. Re: Open CM9.04 - How to connect to AX (or MX) servos?

    Like your solution :D

    I was also pointed to this solution: http://www.robotis-shop-en.com/?act=shop_en.goods_view&GS=1623

    I am also guessing that from their manual:...
  37. Re: Open CM9.04 - How to connect to AX (or MX) servos?

    FYI I found my board and it was a type B so it had two ax connectors on it :wink:
    next up see how I want to power it
  38. Open CM9.04 - How to connect to AX (or MX) servos?

    Suppose I would like to try out their current version: http://www.trossenrobotics.com/open-cm-904c

    And I don't want to buy a bunch of their XL servos but maybe instead try it maybe on PhantomX...
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    Re: YATB - Yet Another Teensy Board :D

    Thanks again!

    Looks like I no longer need to think about XYZ servos so not sure if I will make any updates to that board, but may get back to playing with some other boards...
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    Sticky: News/Announcement Re: ArbotiX 1.6 Files / Libraries

    Hopefully. There version of the Arbotix library works differently than my main ones... There were some issues with differences in messages.

    Let me know if it works for you.
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