2008/5/14 Sven Klomp <[EMAIL PROTECTED]>: > I had the same idea and bought two 1W LEDs. I can dim them with PWM from a > microcontroller. The microcontroller has its own power supply and will be > connected via USB to the Freerunner. Thus, the Freerunner can control the > LEDs in the morning and is also charged during the night (I belive the > Freerunner can be charged in host mode). > > Maybe I don't need a wake-up sound since the LEDs are VERY bright :-)
yes, that would all work, but it reduces the neo to a bit-part in the process - i might as well have a separate alarm clock if i have to faff about with external components in that way. maybe if the neo itself could do the pwm, hacking a couple of leds into a modified case would not be so difficult? on the wiki i see the neo screen can emit 220 cd/m^2 which is ~0.0819 lumens (guessing at a 25deg cone for the light emittance) and from this http://en.wikipedia.org/wiki/Lumen_%28unit%29 , a 100W incandescent bulb emits about 1700lumens =>a 12W bulb (as in the soleil alarm clock) emits about 200 lumens a lot more than the neo screen, so i guess i'm out of luck _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
