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I've recently acquired a lpc1313fbd48 microcontroller and I was looking around on newark.com for a bluetooth module that I could use to connect my microcontroller with my phone. I then began to if certain microcontrollers can accept certain bluetooth modules.

So my question is: How do I pick a bluetooth module for my microcontroller? Are there certain pins or frequencies that I should be aware of when searching for a module?

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  • \$\begingroup\$ What's communicated over BT, and what for? \$\endgroup\$ – Nick Alexeev May 23 '13 at 1:49
  • \$\begingroup\$ @NickAlexeev Changing the music on an iPhone or android \$\endgroup\$ – Coder404 May 23 '13 at 1:56
  • \$\begingroup\$ You will need to be a member of Apple's MFi program (difficult) to change the music on an iPhone. There are a few bluetooth modules that have the iAP (iPod accessory protocol) profile supported. \$\endgroup\$ – Keegan Jay May 23 '13 at 2:07
  • \$\begingroup\$ @Coder404, Ive heard that making an application on iphone which involves bluetooth is much complicated than that for android. Althought I have never made an app for iphone but for Android any bluetooth module would work for sure. I used RN52 from Roving Networks \$\endgroup\$ – David Norman Jun 22 '13 at 5:05
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BT modules usually have at least one of the following interfaces: UART serial (most common), SPI, I2C. These interfaces are standard, and agnostic with respect to controller brand and model. LPC1313 (which was mentioned in the O.P.) has all of these interfaces.

P.S. For something like a BT remote for changing music on Androind, consider looking for modules, which can support Human Interface Device profile (HID, graphic details here).

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  • \$\begingroup\$ @Coder404 You're welcome. Let us know what you choose \$\endgroup\$ – Nick Alexeev May 23 '13 at 3:05
  • \$\begingroup\$ There are some really cheap Chinese Bluetooth modules available from Itead and on Ebay (search for bluetooth hc-05). Itead have a datasheet. These are serial (38400) connected modules with an AT command set. \$\endgroup\$ – carveone Jul 22 '13 at 11:14

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