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  1. Thread: UP Board

    by KurtEck
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    8,693

    Discussion Re: UP Board

    My UP2 board arrived. First thing that hit me, is how much more bulky this board is versus the first UP board.
    7083

    There is an RPI3 sitting behind the UP2.

    They grew the board in one...
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    Re: PhantomX controlled by a Raspberry Pi

    i.e. - A switch!

    Which I assume connects to either 12v wall wart or 3s lipo battery...

    So you wire up switch to power connector on the Arbotix (as well as ground).

    And from your posting...
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    Re: PhantomX controlled by a Raspberry Pi

    Not sure what you are saying by turning on the interrupter...

    But yes the RPI does require a +5v input to power it. I have only played a little with the RPI zero, so I don't know for sure if you...
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    Re: DynaManager Not Finding Servos

    I believe that Kyle renamed many of the functions that were part of the library to not make them sound AX servo specific.

    So what used to be ax12Init is now something like dxlInit...

    I have...
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    Re: DynaManager Not Finding Servos

    Update: I dragged out an Arbotix-M board...

    7077
    Which I have a few extra things with it. In particular, I have the AVR ISP programmer that Trossen sells (or sold), so I don't have to...
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    Re: DynaManager Not Finding Servos

    Hi Robie,

    Yes I saw your earlier posts, that said I tried this and tried that, what I was trying to ask is What is your current setup.
    Do you still have a setup for the 1.84? And what is your...
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    Re: DynaManager Not Finding Servos

    As for Logic Analyzers, I have a few by: https://www.saleae.com/
    Any of them will do, but the Pro is nice for higher speeds... Probably not easy to use volt meter.
    Now if you had a Teensy...
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    Re: DynaManager Not Finding Servos

    Don't see anything obvious in the photo. Looks like jumpers are in place.

    The other minor things I would try include, try a few different servo cables, likewise a few different servos and try...
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    Re: DynaManager Not Finding Servos

    Sometimes pictures help. Example to see what jumpers are on or not on...

    With my test program, you might try doing commands like: 9 1
    Which should try to read most of the registers of servo...
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    Re: DynaManager Not Finding Servos

    As in most cases like, this would help if you fully describe your setup, better also sometimes with pictures.

    Like how are you powering all of this? With Wall wart? Is it 12v. Where is it...
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    Re: PhantomX controlled by a Raspberry Pi

    As for the the ttl level converter, I would guess yes... But I don't speak the language... So can only go by the pictures :lol:

    If you are going with the idea of running the may Phoenix code base...
  12. Question(s) Re: RX_TIMEOUT error when setting power to Dynamixel Pro - Raspberry Pi

    I hear you, and when i said "they" - that could obviously be part of what the board stuffers do as part of the manufacturing.

    I guess I am just sort of spoiled by PJRC with the teensy boards. I...
  13. Question(s) Re: RX_TIMEOUT error when setting power to Dynamixel Pro - Raspberry Pi

    Yes as mentioned I was having issues with the PS3 code base. Like having it create all of the extra threads and the like...

    I know I had a branch of the code that I was playing with that removed...
  14. Question(s) Re: RX_TIMEOUT error when setting power to Dynamixel Pro - Raspberry Pi

    It has been a long long time since I looked at any of that code... Did you try running it with sudo... It looks like it is trying to talk to HID... So maybe a permissions issue?
  15. Question(s) Re: RX_TIMEOUT error when setting power to Dynamixel Pro - Raspberry Pi

    This one sort of surprised me. I would have thought they would routinely test all of the boards especially the Pro, which is not a cheap board...


    Glad this one is working for you!

    As for...
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    Re: PhantomX controlled by a Raspberry Pi

    Yes the Sparkfun level shifter should work for this (I think). Not all level shifters works for all things, but this should work for UART.. As It is I believe the same setup they use for their XBee...
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    Re: PhantomX controlled by a Raspberry Pi

    Sorry I am not Tician, but thought I might chime in again.

    Again I am not exactly sure what you are trying to do... Or exactly which code you are going to connect where... And which RPI you...
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    Question(s) Re: ArbotiX avrdude error

    It might help to see a picture of your setup, to see things like which FTDI cable you are using and if it is hooked up correctly.

    Also see things like which Arduino settings are you using. For...
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    Re: Money Pit V for Victory

    Nice Rover! I like the stair climbing. I keep wanting to make something like that, which could wonder around my house, where the main floor is split up where the main living room/kitchen is at one...
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    Re: PhantomX controlled by a Raspberry Pi

    No, you do not necessarily need an USB2AX. There are many different ways to do this.

    If you have a Arbotix-M, you can obviously use it. You will simply need to load a program on it that listens...
  21. Re: No respond from Dynamixel ax-12 using arduino

    I use mostly Teensy boards: www.pjrc.com where the T3.6/T3.5 are Arm M4f, the T3.2 is Arm M3 and the T-LC is Arm M0
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    Re: PhantomX controlled by a Raspberry Pi

    ? Not sure what you are wanting to do? To use a USB2AX, you simply plug it into one of the USB ports on the Raspberry Pi. And then I typically used an AX wire to connect it to an AX powered hub...
  23. Re: No respond from Dynamixel ax-12 using arduino

    If you can write to the servos, than Baud rate is fine.

    Don't have time to debug their library.

    But quick look at functions like:

    int DynamixelClass::readVoltage(unsigned char ID)
    {
    ...
  24. Re: No respond from Dynamixel ax-12 using arduino

    Hi,

    Might help to have additional information, like what are you using to drive the servos?

    Example what type of Arduino? How exactly do you have it wired up? Pictures help! Also how do...
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    Re: Home network....

    Thanks jwatte,

    I have been using a simple tester:
    7070
    And as I mentioned, the tester shows all 8 wires have connectivity and are in the right order... But. Maybe the TP-link switch may have...
  26. Thread: Turtlebot2i

    by KurtEck
    Replies
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    2,839

    Re: Turtlebot2i

    So how are you liking your Turtlebot?

    Did you order it with the Arm?

    It is interesting that I have received two newsletters from Trossen mentioning their new ROS setups including the...
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    Home network....

    And now for something completely random...

    Over the last week or so, I have been switching out most of my home network hardware. My network provider is using a Microwave disk, where I receive...
  28. Question(s) Re: RX_TIMEOUT error when setting power to Dynamixel Pro - Raspberry Pi

    If it were me, I think I would contact their product support: trsupport@trossenrobotics.com

    It is possible they sent you a second bad board. I would probably try to get them to send you another...
  29. Question(s) Re: RX_TIMEOUT error when setting power to Dynamixel Pro - Raspberry Pi

    As I mentioned, this is not a new issue. There have been a few threads on it, including: http://forums.trossenrobotics.com/showthread.php?7617-Trying-to-debug-HROS1-with-RPI-talking-to-Arbotix-Pro
    ...
  30. Question(s) Re: RX_TIMEOUT error when setting power to Dynamixel Pro - Raspberry Pi

    First with the Arbotix Pro - If it were me, I would try to get it to talk to only a few servos at a time, to see if you can get any of them to talk.

    I would also use my own library code to see if...
  31. Question(s) Re: RX_TIMEOUT error when setting power to Dynamixel Pro - Raspberry Pi

    I have not touched mine in awhile.

    as I mentioned, I use my own Linux code, and test programs, sometimes it is simply some servo reset its identity to #1, which causes issues. Or it is the ftdi...
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    Re: TTL bus has a mysterious pulse on it

    @jwatte - Looks good. At times I have wondered if we need something like these on the Hexapod, as I think there are times when response packets are not always reliable.

    Which TVS are you using? ...
  33. Thread: UP Board

    by KurtEck
    Replies
    33
    Views
    8,693

    Discussion Re: UP Board

    ... I did try with monitor that I don't care about and nothing (as I suspected would happen).

    It was sort of interesting yesterday, that when I made the order for the replacement plus a few...
  34. Thread: UP Board

    by KurtEck
    Replies
    33
    Views
    8,693

    Discussion Re: UP Board

    Again I don't have schematic, but was told they do have at least a poly-fuse and then voltage regulator...

    I did try applying 5v to RPI like header pins and the 3.3v pins show correctly so some...
  35. Thread: UP Board

    by KurtEck
    Replies
    33
    Views
    8,693

    Discussion Re: UP Board

    I thought I would mention, I did a big OOPS with my UP board.

    I had my Teensy 3.6 HAT plugged into the UP board with the Pololu DC to DC converter, where I plug in a 12v wall wart (or lipo...
  36. Question(s) Re: Advice and opinion about Phantom X for use in theatrical performance

    Hi David,

    For me that is a real hard question to answer. I think it really depends on a whole variety of things, like:

    You say you have no robotic knowledge, but how comfortable are you with...
  37. Re: ReactorX arm intermittently stopping, jumping frantically.

    Note: there is another thread: http://forums.trossenrobotics.com/showthread.php?10547-Robot-suddenly-stops-starts-again-when-wiggled
    About this issue as well.
  38. Question(s) Re: Robot suddenly stops, starts again when wiggled

    To get support from Trossen, you might try emailing their trsupport email address. As with all problems like this, it always helps to have additional information, like what version of Arduino you...
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    Project Re: DIY FSR Feet for the HR-OS1

    FYI - I made circuit boards for feet and Neopixels for both teensy and trinket. Example Trinket LED
    7064

    They are up in my github (kurte) Teensy3.1-Breakout-boards project...
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    Interesting Re: Chip-E challenge

    Nice entry!

    So far I have not heard of anyone else up here entering it.

    My guess is they may get a few more people from here if they would post more information here on the forum about it...
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