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Re: [SeattleRobotics] Talking to Bluetooth

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  • Kevin Impson
    Hi Everyone, Merry Christmas - wish for snow please... I did a simple google search and found this and it works rather nicely... I m going to get the full
    Message 1 of 57 , Dec 11, 2011
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      Hi Everyone,

      Merry Christmas - wish for snow please...

      I did a simple google search and found this and it works rather nicely... I'm going to get the full developers version myself...

      You can download a demo version which does everything... you get a nag screen but just close it... or better yet just minimize it with a VB command...

      http://www.btframework.com/download.htm

      For those of you having problems with BT and such, you also get WIFI, IR Wiimote and such...

      Kevin I.


      From: Peter Balch <peterbalch@...>
      To: SeattleRobotics@yahoogroups.com
      Sent: Sunday, December 11, 2011 4:22 PM
      Subject: Re: [SeattleRobotics] Talking to Bluetooth

       
      From: robotMaker
      > I ordered two of them from here:
      > http://www.dealextreme.com/p/wireless-bluetooth-rs232-ttl-transceiver-module-80711

      That's a very good price.

      There seems to be very little documentation for them. Any idea how it does
      pairing? You wouldn't neccessarily want strangers to be able talk to your
      robot.

      Peter



    • jamericanfreddy
      here is some info from CMU.EDU website on the BRAINBOARD http://www.ri.cmu.edu/news_view.html?news_id=211&fcode=1&menu_id=385
      Message 57 of 57 , Jan 17, 2012
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        here is some info from CMU.EDU website on the BRAINBOARD
        http://www.ri.cmu.edu/news_view.html?news_id=211&fcode=1&menu_id=385

        --- In SeattleRobotics@yahoogroups.com, robotMaker <robotmeiker@...> wrote:
        >
        > I was thinking of both.
        >
        >
        > You answered the question, I see better why you need to use the XBEEs. Your application is more industrial grade than the application for BT.
        >
        > Freedy, when I was referring to having to use two to establish a wireless link, I meant two XBEEs. For BT, only one is needed for most cases, since everything now comes with built in BT.
        >
        > I was using BT sometime ago with a GumstixWaySmallComputer ( www.gumstix.com ), but I was not getting the control that I needed, even though the GumStix was running linux, it was not working I need it to. But now with the Android phone and Tablets, everything has changed. An Android cell phone without a service contract is basically a tiny Tablet. With built in BT it makes a perfect bot controller. I've been thinking of doing what Arnaldo did here, http://www.youtube.com/watch?v=QI78ZeLQ2H4. The Android phone has everything needed, Speech recognition, vision, audio (for good quality speech), GPS, and Accelerometer and more and a good battery for self containment. The BT connects all the power of a kick butt processor with at least 8 gigs of memory to the real world control of a bot. An Android phone without a service contract, can still connect to a wi-fi network. I can go anywhere on the web, I can even download apps from other websites other than the
        > AndroidMarketPlace. The AndroidMarketPlace is the site that I need to go to, to download Mintoris Basic, which makes the Android phone do what I need it to do. It's all so near and yet so far. So to work around using Mintoris Basic, I was trying to build a simple Android app, that will talk to my BT controller, to control my servos. Such as in this Instructibles suggestion:
        >
        > http://www.instructables.com/id/Android-talks-to-Arduino/step4/Change-Android-Bluetooth-Chat-sample-App/
        >
        > But just trying to build the BluetoothChat in the sample apps in the Android-SDK-linux, without any changes, is something else. It's a BEAST! It's all written in Java, which is not bad, it's just all the prep that has to be done exactly right in the Java build environment, in order to build a simple app.
        >
        > Which brings me to the question, has anyone on this list ever built a simple Android app, using the Android-SDK, and "ant debug' on the command line?
        >
        > Thanx
        >
        > Cesar
        >
        >
        >
        >
        > ________________________________
        > From: Randy M. Dumse <rmd@...>
        > To: SeattleRobotics@yahoogroups.com
        > Sent: Tuesday, January 10, 2012 2:04 PM
        > Subject: RE: [SeattleRobotics] Re: Talking to Bluetooth
        >
        > robotMaker said: Tuesday, January 10, 2012 12:16 PM
        > > What are you using the XBEE for?
        > > Don't you need two, to establish a link?
        >
        > Don't know if your replying to me or Freddy. But if it is me, my
        > company (NMI) sells then and they are used for substitute serial
        > links. Personally, they are my favorite for laptop to robot main
        > console communications. But the customers have used them all
        > over the place.
        >
        > Example: Guy called this morning. He uses them on water quality
        > monitoring stations. Also mentioned an app on the Mississippi
        > where a gambling boat uses sensors all around it to collect data
        > from differential GPS's, so they can monitor how this boat moves
        > around at its piers.
        >
        > Application where I suggested 6000 feet was a test to see if
        > range would work. It was for an siesmic sensing electronic fence
        > along the border of Kuwait and Iran. It was also tested in NM on
        > the Southern Board program. To do the distance test, I used a
        > battery powered GPS which echoed through a micro to a XBEE Pro,
        > Had my wife drive away from me in car with unit on roof, turn
        > around and come back. I used a laptop with a dongle held waist
        > high. Then took captured data home and plotted with google earth
        > to get a measure of range. When the reliable reception died out,
        > that was maximum range. Over 1.2 miles. Hard to find a flat
        > clear area with enough line of sight here in East TX. But tested
        > range was better than their specs, so was pleased. BTW, the
        > clear air around the antenna makes a huge difference. Digi
        > calles it the Fresnel distance in their appnotes. I tried the
        > laptop sitting on the ground, and the range was about half or
        > less just 4 feet higher.
        >
        > I also used it in the class room so students could have a link
        > to their Mini-Sumo while running on the arena. Also used for
        > link to RoboMagellan robot to share data/performance.
        >
        > In the Queen of Jordan Museum Soccer Bot project, used it for
        > development. That was kind of cool, because I had two robots,
        > and two hand joystick controllers that talked to them during
        > play. They went autonomous after game back to their recharging
        > stations. The link between them was XBEE. Then I had a XBEE on a
        > dongle to the laptop. I chose two different channels, one for
        > each robot/joystick. So while they were operating all in
        > parallel, I could just listen-in with the laptop, see what the
        > traffic from one to the other was saying. But! Turn off either
        > one, robot or joystick, I had a backdoor escape code so the
        > other micro would drop out of operation and back into
        > interactive mode. Then I could download new code. No swapping or
        > setup. Just turn off one, and the link to the other became
        > active. Change the channel, and I could monitor, or even
        > reprogram, the other pair same way. It was an incredibly useful
        > development setup for four separate microcontrollers at once.
        >
        > Then I also did the Kirby Science center lunar robot display
        > using a Bluetooth link. It's been long enough ago I can't
        > remember the exact unit, they were pricey, AirLink maybe. They
        > were advertized as a serial wire replacement. Similar
        > development, but only one PC and one remote on line at one time.
        >
        > Yes, you need two Xbees to have a link. We sell a USB carrier
        > dongle that allows the XBEE to be plugged straight into a PC. We
        > have supplied XBEE's with them in the past, but now we usually
        > refer people directly to DigiKey to buy their modules, since
        > there's not enough margins with volume we can even recover our
        > shipping costs.
        >
        > I've heard there's competition for Digi now on ZigBee modules,
        > but I can't say I've tried any, or have an experience with the
        > newer units.
        >
        > I've enjoyed following this thread, because I've just started
        > using the HC-05's myself. I was amazed how easy it was to bring
        > up the first unit. Mine came from dealextreme. I was glad to
        > find more documentation on the web. Think I'll be using lots of
        > these in the future, as links between embedded micros and cell
        > phones, which looks to me to be a new area of business
        > opportunity.
        >
        > Randy
        >
        >
        >
        >
        > ------------------------------------
        >
        > Visit the SRS Website at http://www.seattlerobotics.orgYahoo! Groups Links
        >
        >
        >
        >     http://docs.yahoo.com/info/terms/
        >
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