Federman - yeah I read that thread and was wondering what was going one. Few comments:
BI is simply polling that alarm output. You could use any camera setting to trigger it you want, heck you could even use an external sensor (like a PIR) to input a high signal to the alarm input - then...
I'm just putting the finishing touches on an article on how to leverage the sensor built into this camera with blueiris. I've always felt that a PIR gives better motion detection for the events I care about - ie - people or animals than image based motion detection does. Obviously other use...