[mmatej]

Originally Posted by geekmaster

Thanks! That has been on my "To Do" list for a long time (with no plans to do it any time soon). I am curious if the kindle can be charged through that port too -- if so you could also use it as an input port.

I was thinking of using the green and yellow power LEDs on a K4 to give it PWM stereo sound output (using photocells with color filters connected to an audio amplifier). Perhaps it would be easier to drive a speaker directly (with a current limiting resistor) if we PWM the accessory port output.

More karma for you!

Thanks for the karma! I think it could not be used as input port (also, I am not going to try it - there is currently no easy HW "unbrick"). While I was playing with the port, I've also tried to connect it to the piezo speaker and no way it could power speaker directly (even a piezo). I almost couldn't hear it (and with increasing freq -> decreasing volume).

Originally Posted by geekmaster

EDIT: Not that it *really* matters when running programs from mmc (especially with this busybox that "short circuits" its own built-ins and ignores the "normal" load process), but the '[' conditional is a PROGRAM that loads and runs from the /bin folder (as I recall), but '[[' is an intrinsic that is executed directly by the shell. This really only makes a difference on non-busybox systems, but it is a good habit (even though it uses more characters on the line).

Maybe next time.