ANNOUNCING: navX MXP Robotics Navigation Sensor

[taichichuan]

Thanks! We're looking forward to seeing the updates!

[taichichuan]

If you need someone to help test the updates with the 2016 Beta libraries, we'd be happy to help.

Mike A.
FRC #116

[slibert]

Originally Posted by taichichuan

If you need someone to help test the updates with the 2016 Beta libraries, we'd be happy to help.

Mike A.
FRC #116

Hi Mike,

Beta versions of the navX-MXP C++/Java Libraries which are compatible the 2016 Beta WPI Libraries (C++/Java) are now available for testing. Anyone interested can PM me for details on getting a copy of the beta libraries.

The functional changes are:

- C++/Java: navX-MXP Libraries compiled w/latest 2016 WPI FRC beta libraries.
- C++/Java: I2C transfer sizes, previously limited to 7 bytes/transfer in the WPI Library, have been increased. The navX-MXP libraries now transfer all I2C data in a single bus read transaction, increasing performance.

Not yet changed:

- Java: to link w/the navX-MXP Java library, the WPI Library's build.properties file must be edited, as described in these directions. This additional step will be removed before the final release of the navX-MXP C++/Java Libraries for 2016.

[Jonathan L.]

Originally Posted by taichichuan

Unfortunately, the examples fail to build in the 2016 control system betas. The compiler complains about:

"invalid new expression of abstract class type 'AHRS'" and dies a horrible death.

Just to make things clear: Is this just a problem with C++/Java? Is the 2016 beta navX LabVIEW code working? If not will it be updated by kickoff? Thank you!

[slibert]

Originally Posted by Jonathan L.

Just to make things clear: Is this just a problem with C++/Java? Is the 2016 beta navX LabVIEW code working? If not will it be updated by kickoff? Thank you!

Yes, the previously reported compile problem when used with the 2016 FRC beta was limited to C++ and Java, and a fix for that issue is now in beta.

LabView is good to go. James Parks, the creator of the new V2 LabView NavX-MXP Library (http://www.chiefdelphi.com/forums/sh...highlight=NavX) has successfully tested the LabView library against the 2016 Beta, and indicates it works fine with the SPI, I2C and TTL UART interfaces.

The only further work remaining is to deal with an issue found when testing the USB interface against the FRC 2016 beta image/library.

So give it a go and let us know how it goes. The SPI interface is highly recommended.

[Jonathan L.]

My team is not a beta testing team, so I can't test it until build season. Anyway, we got the navX working with the 2015 FRC LabVIEW software recently. Looking forward to using it next year!

[slibert]

The navX-MXP Java and C++ Libraries have been updated to work w/the new 2016 WPI Libraries. And the Zebracorns have released an updated LabView library for 2016. The latest build of all these libraries is available now.

In addition, Team Shockwave has created a C# RoboRIO Library that also features a navX-MXP Library.

And there are more examples than ever both in the examples provided with the C++, Java and LabVIEW Libraries, as well as in the recent team code releases, including those of team 2465 (Kauaibots).

And we've heard wind of a Python RoboRIO Library being developed as well - we'll let you know when more details are available on that.

KauaiLabs wishes everyone an incredible 2016 build season!

[topgun]

Where is the CAD file for the MXP located? I downloaded the zip file, checked Git, but I still don't see the actual CAD file for the board itself. I am looking for the SolidWorks CAD file.

Thank you.

[Jonathan L.]

Originally Posted by topgun

Where is the CAD file for the MXP located? I downloaded the zip file, checked Git, but I still don't see the actual CAD file for the board itself. I am looking for the SolidWorks CAD file.

Thank you.

Get the download from this page http://www.pdocs.kauailabs.com/navx-mxp/software/

The CAD files are in the zip file; no need to install everything. I don't see a Solidworks model there, but there are several SketchUp files and an STL file.

[schleprock]

Originally Posted by slibert

The only further work remaining is to deal with an issue found when testing the USB interface against the FRC 2016 beta image/library.

we just received a couple of the navx's and we want to use the USB port as our roborio is mounted on the side of the robot in a verticle position. i tried the DataMonitor example and i can see everything when we plug the navx into the mxp port. but i see nothing when we connect it via USB. i changed Port parameter to the AHRS constructor to SerialPort.Port.kUSB but no output to the smartdashboard. it doesn't throw an exception, so the AHRS class instance is getting constructed. there's just doesn't seem to be any communication. is the issue you refer to? and is it going to be fixed anytime soon?

thanks

[Acocagne]

Does anyone have one of these to sell or have a supplier that has it in stock?
AndyMark and the manufacturer are both out of stock.

Thanks

[slibert]

Originally Posted by Acocagne

Does anyone have one of these to sell or have a supplier that has it in stock?
AndyMark and the manufacturer are both out of stock.

Thanks

More units should be available for sale at the KauaiLabs store by 3/22, and at AndyMark by approximately 4/3.

[DKolberg]

I am trying to verify operation using the navX mxp by hooking up to a PC with a USB cable. When I connect the usb from the pc to the navX nothing happens, the lights on the navX blink and go green, but he PC does not see any com port nor any device loading message. when I open the configuration utility no com ports show up. How do I configure the drivers so the PC can talk to the navX?

[marshall]

Originally Posted by DKolberg

I am trying to verify operation using the navX mxp by hooking up to a PC with a USB cable. When I connect the usb from the pc to the navX nothing happens, the lights on the navX blink and go green, but he PC does not see any com port nor any device loading message. when I open the configuration utility no com ports show up. How do I configure the drivers so the PC can talk to the navX?

Is this a Windows system? The NavX should show up as a COM device. My best guess from your description is that the USB cable you are using doesn't support data and just does power but I could be wrong.

Scott Libert (Of NavX fame) is competing with his team this weekend so I don't think you'll get an official response until next week but I would try it with a different USB cable.

[slibert]

Originally Posted by marshall

Is this a Windows system? The NavX should show up as a COM device. My best guess from your description is that the USB cable you are using doesn't support data and just does power but I could be wrong.

Scott Libert (Of NavX fame) is competing with his team this weekend so I don't think you'll get an official response until next week but I would try it with a different USB cable.

When you run the navX-MXP setup the drivers are installed, at which point the board shows up as a COM port when plugged in via USB. *Be sure that you run the install as administrator otherwise depending upon your system security settings the drivers may fail to install.*