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Microcontroller with both USB and Bluetooth

Discussion in 'Radio and Wireless' started by itsdonny, Sep 5, 2012.

  1. itsdonny

    itsdonny

    12
    0
    Aug 23, 2012
    Can someone please give me some options for a microcontroller with both USB and bluetooth?

    Thank you!
    Don
     
  2. CocaCola

    CocaCola

    3,635
    5
    Apr 7, 2012
    Many micros support USB native, Bluetooth will almost certainly require an external module... Visit the Microchip and Atmel sites for a vast variety of options for example... And look into the Bluetooth modules out of Asia that can be found on Ebay and the sorts, they are a very cost effective way to implement Bluetooth...
     
  3. itsdonny

    itsdonny

    12
    0
    Aug 23, 2012
    Thank you CocaCola. I'm thinking of not using usb at all. The only reason I wanted to have it was so the consumer could update the device's firmware via USB. If this can be done via bluetooth then I really don't even need USB. What do you think about updating a device by bluetooth?
     
  4. CocaCola

    CocaCola

    3,635
    5
    Apr 7, 2012
    I have never done it but there appears to be a few bootloaders out there that are using a Bluetooth connection... USB is IMO easier and more reliable for an end user to update with though, and the cost is nil to get a chip with USB support built in vs chips that don't have it...
     
  5. itsdonny

    itsdonny

    12
    0
    Aug 23, 2012
    Thank you, Coca Cola. On a slightly different note would it be possible if I were to use a micro controller with USB support to just simply add a USB dongle like the following?

    http://www.amazon.com/Bluetooth-Wir...d=1348210745&sr=8-3&keywords=bluetooth+dongle

    Do you know if these types of bluetooth dongle require a PC or is there a way around that. Somehow these little dongles are far less expensive than regular bt modules that I've seen.

    Thanks again for your help!

    Don
     
  6. CocaCola

    CocaCola

    3,635
    5
    Apr 7, 2012
    In theory it should work, but you might very well have to write the whole communications stack from scratch to control that module... Likely a very daunting task vs a module that is designed and documented to use standard serial interfaces...
     
  7. itsdonny

    itsdonny

    12
    0
    Aug 23, 2012
    I see. Thank you so much!
     
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