Bluetooth v2.0 DIP Module and SPI

Archive SparkFun Site Questions/Comments
1

I’m looking to use the Bluetooth v2.0 DIP Module in an embedded project (haven’t purchased yet), but need to transmit data faster than the UART spec provides.

I know that SPI is capable of sending data much faster, so I am planning on using that instead. When working with this particular device, is there anything special I need to do to use SPI, or can I just start sending AT commands over SPI?

Also, will it work at whatever valid SPI clock rate I set it at?

I’m a little worried about this, because there isn’t any good documentation for this particular bluetooth module.

2

Hi,

You’ll run into bluetooth limitations before you hit the uart speed limitation.

Cheers,

–David Carne

3

The spec sheet (http://www.sparkfun.com/datasheets/Wire … Module.pdf) says that the bluetooth module is capable of 2178kbps. Isn’t UART limited to 115.2kbps?

4

bump

5

sopordave:
The spec sheet (http://www.sparkfun.com/datasheets/Wire … Module.pdf) says that the bluetooth module is capable of 2178kbps. Isn’t UART limited to 115.2kbps?

Under windows it is but the UART on a PIC can be run well over 1Mbps.

-Bill

6

phalanx:

sopordave:
The spec sheet (http://www.sparkfun.com/datasheets/Wire … Module.pdf) says that the bluetooth module is capable of 2178kbps. Isn’t UART limited to 115.2kbps?

Under windows it is but the UART on a PIC can be run well over 1Mbps.

-Bill

Thanks, I’ll keep that in mind.

Has anybody used SPI with this module?