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ATmega128 conntion to Bluetooth, General informations needed

 
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Benny81

Bascom Member



Joined: 31 Dec 2010
Posts: 7

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PostPosted: Thu May 19, 2011 7:47 am    Post subject: ATmega128 conntion to Bluetooth, General informations needed Reply with quote

Good morning Everyone,

I am new in this Forum, so hopefully someone is aible to help.

My idea is to connect the "Roving Networks RN41" Bluetooth module with a ATmega128 controller. I will need that Bluetooth connection for diffrent applications. But I don't have the understanding for the basics... Embarassed

Is someone in this forum who can describe the basics? How important is it to have the "service class" or "device class"? What will the Bluetooth controller do if this both classes will be defined? I read somethings about "services". What will this services do?
What will be needed if I like to connect one other Bluetooth device? What will the receiver do?

If someone will have a short desription that will be very helpful for me...

Thanks a lot!!!!

Benjamin
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six1

Bascom Expert



Joined: 27 Feb 2009
Posts: 552

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PostPosted: Thu May 19, 2011 2:50 pm    Post subject: Reply with quote

Hi Benny,
you can search for BT-222 Modul. There are a few projects in Bascom!

also have a look at Ben's Hobbycorner site!

http://members.home.nl/bzijlstra/software/examples/9DOF.htm

in the German Bascom Board http://bascomforum.de/ is stuff too, but today and maybe tomorrow closed, because of moving Very Happy

cy Michael

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Last edited by six1 on Thu May 19, 2011 3:22 pm; edited 1 time in total
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MAK3

Bascom Member



Joined: 24 Sep 2010
Posts: 450
Location: Germany

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PostPosted: Thu May 19, 2011 3:13 pm    Post subject: Reply with quote

Hello,

here is also a BT-222 documentation:
(you see it only when logged in)
http://www.mcselec.com/index2.php?option=com_forum&Itemid=59&page=download&id=1657

MAK3
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JC

Bascom Member



Joined: 15 Dec 2007
Posts: 490
Location: Cleveland, OH

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PostPosted: Thu May 19, 2011 3:54 pm    Post subject: Reply with quote

Hi Benny,

This Circuit Cellar Article discusses connecting a BT GPS to a BT module tied to a microcontroller. While not Bascom, and not an AVR, it does explain several of the basic concepts.

JC
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Benny81

Bascom Member



Joined: 31 Dec 2010
Posts: 7

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PostPosted: Thu May 19, 2011 7:15 pm    Post subject: Reply with quote

Thanks for your first answers. I will check that Links. But I hope someone can give more informations!? Thanks a lot!

Regards
Benjamin
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Benny81

Bascom Member



Joined: 31 Dec 2010
Posts: 7

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PostPosted: Fri May 20, 2011 11:15 am    Post subject: Reply with quote

Hello,

so now I have understand that I have to program the BT device by ASCII commands. After programming I will leave the command mode and can send the infomations via Bluetooth.

But I will send the informations to a selected MAC adress. The MAC adress should be called by a menue. So during the communication I'd like to change the adress. How should I do that. Do I have to reset the module and should I change into the command mode?

What do you think?

Thanks a lot!!
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Benny81

Bascom Member



Joined: 31 Dec 2010
Posts: 7

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PostPosted: Fri May 20, 2011 12:35 pm    Post subject: Reply with quote

Is someone in this forum who can tell, how important it should be to use the rigth service- and device- classes? Embarassed

Rolling Eyes

It is realy confusing to find the service-class and device-class for that application.

Thanks a lot.
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