Replies

  • Joel March 6, 2013 at 2:52pm

    But, doesn't the XSC have a greater range than the p09?

    Also, the tx/rx in the diydrones store says it has superior performance and longer range than xbee, but then it says it only has a range of 1 mile. What are your thoughts?

    https://store.diydrones.com/3DR_RadioTelemetry_Kit_915_Mhz_p/kt-tel...

  • steve March 5, 2013 at 1:52pm

    Well digikey wouldn't exchange them but they picked up the shipping on a new set. If anyone has a use for the XSC models I know where you can get a good deal :-) Or if someone has an interesting use for them, then I can make a project out of it. I think it will never work for APM.

  • steve March 2, 2013 at 5:45pm

    Maybe I will switch to these. Are they really much better than the XBP09-DPSIT?

  • steve March 2, 2013 at 5:40pm

    Would this be the one to get to match the ones that were sold at the 3DRobitics store?

    http://www.digikey.com/product-detail/en/XBP09-DPSIT-156/602-1169-N...

  • steve March 2, 2013 at 5:35pm

    I posted a message about this in the 3DR radio forum but will ask here also. I got the same modems from digi since 3drobotics didn't have them. I have many of the 3drobotics 900MHz versions that I connect at 57k and they work great. Now I need some more but I need them to work with what I have and it looks like from reading here that they only communicate at 9600??? No way to set them to 57600???

    If that is the case then I'm going to send these back but which is the right one to get? I'm not seeing at XBee PRO DP listed.

    I would like to switch to 3DR radios but I'm using the ardutracker that uses an xBee connection.

    This is what I got: http://www.digikey.com/product-detail/en/XBP09-XCSIT-009/602-1278-N...

    http://store.diydrones.com/product_p/br-0015-01.htm

    I'm not seeing the 

  • Anand S. Biradar May 20, 2012 at 12:51pm

    Hi all of you,

             Can we connect different Xbee's , one is XSC & another id XBee PRO DP both have Atmel IC's on them. I set up baud rate of 9600 on both but still can't communicate.

  • T3
    Ted Van Slyck March 24, 2012 at 10:30pm

    OK...I figured this out...disregard all that stuff I said earlier. I am not sure why it worked, it only would intermittently anyhow. I have figured out how to make it work consistently. 

    Modules: Xbee 900 mhz XSC

    Firmware version 1022

    The DIY adapter boards 

    The key thing to understand here is that the RF rate between these two modules is 9600 kbps. If your computer or the APM attempt to communicate with the XBEE module faster than that the buffer for the module will very quickly fill and you get an error. To make this a non issue you have to set the baud rates for the modules, the APM and Mission Planner to 9600. 

    1. Connect to the APM via a USB cable as always in Mission Planner.

    2. Select the Configuration Tab.

    3. On the left side all your settings are shown. Scroll down to Serial3_Baud. Change that from 57 to 9. Write the changes.

    4. In X-CTU connect to each XBEE module and make sure they communicate 9600 baud. They ship that way, so it shouldn't be too much of a problem unless you have been messing with the settings. You change this under the "Modem Configuration" Tab. Change "Interface Data Rate" to 9600. You can also set the "destination channel". Mine is 0100, I think it has to be in that format at least.

    5. Attach the Xbee to the APM as described in the wiki.

    6. With the APM powered up with an XBEE attached, you computer powered up with an XBEE attached, open Mission Planner, set baud to 9600 and connect.

    It consistently works for me, not as fast as my 09P model, but seems fine. I have not flown with it, but it works great in my living room. I've read on some forums about the XSC model needing a little more power that the APM will give. I have no idea if this is true or not, I will fly tomorrow and see if I have any problems and report back. 

    Ted

  • T3
    Ted Van Slyck March 24, 2012 at 4:59pm

    I happened to have to a couple of xbee XSC 900 mhz laying around and decided to see if I could make them work, which I did successfully. 

    What I did.. not saying this is the desirable setup, but it worked.

    Xbee XSC modules

    DIY XtreamBee Board on my APM v1

    DIY XtreamBee USB adapter

    I changed the serial 3 baud of the APM to 9600

    I set the XBEEs to 57600

    My xbees did not allow a VID to be changed, so I changed the "Destination address". I Set it to 0100.

    It works, but is a touch laggy. I got the idea to set the APM to output a slower baud than the xbees are communicating at by a post someone wrote mentioning "data piling up". So if the xbees talk faster than the APM, that cant happen. I am NOT experienced at this kind of stuff, FYI. This just happened to work for me. 

    I have seen this question ALOT in the forums, so I decided to give it a go. 

    I will try setting the the APM baud faster but still less than 57600 and see if that works with less lag. I can attest from experience that setting the APM and the XBEEs to 57600 or 9600 (the idea is that they are set the same) does not work and I get an error in mission planner that says my serial speed is not fast enough. 

  • Developer
    Randy March 16, 2012 at 8:35pm

    Santini,

         When you say, "diy adapter boards" you mean this one from 3d robotics?  My guess is it will because I think all the xbees have the same footprint and pin layout.  .. but I don't even fly with an xbee normally so I'm not the most reliable person in this particular area.

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