Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: RoboGenius on May 05, 2009, 12:59:57 PM

Title: Bluetooth UART
Post by: RoboGenius on May 05, 2009, 12:59:57 PM

Hallo ,I've got a little problem I build an micro controller and I want to make a wireless UART .
I decided to use my old bluetooth dongle can I connect it to my MCU ?
                                                           Thanks,RoboGenius

P.S. The microcontroller is ATMEGA8.

Title: Re: Bluetooth UART
Post by: SmAsH on May 05, 2009, 02:29:04 PM

http://www.societyofrobots.com/electronics_bluetooth_robot.shtml (http://www.societyofrobots.com/electronics_bluetooth_robot.shtml)
you can use that old dongle but you will have to buy another dongle like bluesmirf for the mcu side of things.
two dongles will not do i don't think...

Title: Re: Bluetooth UART
Post by: RoboGenius on May 06, 2009, 03:46:41 AM

Thank James ,
I have 2 dongles but I saw in a video of axon that the builder connected an  dongle to the axon and another in the PC.
How can I connect my second dongle to the 50 $ robot.

Title: Re: Bluetooth UART
Post by: SmAsH on May 06, 2009, 03:54:31 AM

can you link me to the video so i can have a look?

Title: Re: Bluetooth UART
Post by: RoboGenius on May 06, 2009, 03:55:54 AM

PS: I am in Romania  and the bluesmirf is not available in our country.

Title: Re: Bluetooth UART
Post by: SmAsH on May 06, 2009, 03:57:02 AM

hah, i was wondering why you were replying so fats ;D take a look at the uart tutorial over here:
http://www.societyofrobots.com/microcontroller_uart_50_robot.shtml (http://www.societyofrobots.com/microcontroller_uart_50_robot.shtml) then we can talk ;)

Title: Re: Bluetooth UART
Post by: RoboGenius on May 06, 2009, 03:57:45 AM

Sure here you got it IR Transceiver Demo (http://www.youtube.com/watch?v=IBpHslpP6DQ#lq-lq2-hq)

Title: Re: Bluetooth UART
Post by: RoboGenius on May 06, 2009, 05:43:10 AM

I Read it.

Title: Re: Bluetooth UART
Post by: SmAsH on May 06, 2009, 05:58:14 AM

now that is a more complex set up... he has the infra-red transmitting to the other axon the it transmits to the pc via a bluetooth... the way he has it wired i would say the one on the axon end wouldn't be a standard dongle on its own... i would think that it is a bluetooth module designed to connect directly to the uart...
so in your case i would say your best shot would be to look into uart-usb chips and see if interfacing the bluetooth dongle---usb-uart chip--uart port on mcu...
look into some of these things.