LED fade over bluetooth

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hello,
i'm not sure if i'm trying possible.  have simple led pwm fade i'd control via bluetooth.  have virtuabotix  bt2s-slave module bluetooth serial port.  i'm controlling pwm macbook pro, works wonderfully on usb.  on bluetooth, however, fade choppy.  i'm using standard firmata on arduino, uses baud rate of 57600.  made video demonstrate issue:  http://jdwalsh.com/movies/led_bluetooth.mov
anyway, reasonable assume can communicate enough on bluetooth?  thanks!

further troubleshooting:

i tried controlling arduino 2007 mac mini, , worked great!
so means problem lies somewhere between 2012 macbook pro retina , virtuabotix bt2s-slave module. 
i'm wondering:
- have of run bluetooth issues on these new macbooks?
- there further tests can run on mac dig deeper , diagnose what's wrong bt?
fwiw, bt mouse , other devices work fine on it.

thanks!


Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > LED fade over bluetooth


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