Search found 3 matches

by Slide
Thu Jan 06, 2005 11:53 am
Forum: General Discussion
Topic: 'Filtering' 60hz flash
Replies: 6
Views: 2522

Re: 'Filtering' 60hz flash

I've decided that I am going about this the wrong way - I'm just going to use a real time clock (RTC) module (Maxim), an MCU with a PWM output and a math coprocessor (Micromegacorp) and just make a full-blown reef computer.<p>I'll take the time from the RTC and use the coprocessor to calculate sunri...
by Slide
Mon Jan 03, 2005 6:08 am
Forum: General Discussion
Topic: 'Filtering' 60hz flash
Replies: 6
Views: 2522

Re: 'Filtering' 60hz flash

<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by philba: I agree with jwax, a cap should work if the photoresistor is seeing multiple flashes.<p>However, I wonder if this is your problem. Have you put a scope on the signal to see if its the sourc...
by Slide
Tue Dec 28, 2004 4:38 am
Forum: General Discussion
Topic: 'Filtering' 60hz flash
Replies: 6
Views: 2522

'Filtering' 60hz flash

I have a project I made to control 'the moon' for my brother-in-law's saltwater aquarium. It flashed blue led's to simulate the phases of the moon.<p>I am using a photoresister to tell when the main aquarium lights are on - this tells my circuit that a day has passed.<p>The problem is, the 60hz flas...