On Mon, Aug 29, 2011 at 07:38:20PM -0400, Richard Smith wrote: > On Mon, Aug 29, 2011 at 1:06 PM, Bert Freudenberg <b...@freudenbergs.de> > wrote: > > And it seems to sit "behind" the blinking left-most LED? And the > > blink rate is proportional to the light sensed? Why? > > Its proportional because that's how the sensor works. The amount of > light changes the time to bleed off the charge stored in the diode > when you reverse bias it.
Hmm, we could schedule the samples to start at a constant time relative to the previous start, and thereby only change the amount of off time of the wireless LED, but this would suck because the sample rate would be much slower in bright light. We would not notice encroaching darkess as quickly. Bert, the sensor was chosen for low cost, within the constraints of the update rate we needed for potential automatic display backlight control. -- James Cameron http://quozl.linux.org.au/ _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
