Android Question Bluetooth bitrate

[Steven Buckley]

I wish to pass serial data to/from a Bluetooth device. I notice that the default
baud rate is 9600. I need to transfer much quicker that this. Can you increase the rate of the Bluetooth link to higher rates (Eg....19200,38400,57600,115200, 230400, 460800, 921200) or is B4A stuck at 9600?

 

[DavideV]

The bluetooth radio hardware is responsible to manage the speed and adapt it if necessary.
You are talking about the 'wired' com speed that is a different thing (i.e. the speed beetwen your microcontroller and the BT module)

 

[Steven Buckley]

True. Silly on my behalf. I have used the type 'Serial' to interface to a BC127 Bluetooth module. The interface to the BC127 was an FPGA
that used the default 9600 baud rate for communication. I have a new application that needs faster comms. The BC127 has a programmable
buad rate that can go up to 921200. If I change the rate to 921200, can I assume that the Android app using the type 'Serial' will automatically
keep up with the new speed. Thanks

 

[DavideV]

I think yes, it depends on the hardware of the phone and his drivers, imho.
The environment around the 2 devices and the distance has a big impact on the bt communication speed.

 

[Steven Buckley]

Thanks for that. Once the hardware is available I'll give it a try.