View Full Version : Day/Night/24 hour select circuit.
05-02-2001, 10:13 AM
A few weeks back I posted a link to a home-made PIR sensor schematic. ###For anyone interested, here's another "home-brew" circuit for use with the sensor. ###It allows for selecting between day only / night only / or 24 hour use. ###It's on the same page as the sensor schematic, just scroll down a bit. ###I should have the modified timer schematic done in a week or so, I'll post a link to it then.
05-02-2001, 11:27 AM
Well, post that TIMER Schematic! ! ! ### ### ###just kidding
Did you see the reverse engeneered schematic of the MS20 I posted a while back?
Thanx for posting the schematics. ###I built a day/nite unit for the TLC 555 Timers but I'll be darn if I can find the schematic (have to reverse engeneer my own circuit !)
The day/nite switch is easier when using the 555 because no active components are required.
The only real problem I had was adjusting it without a light meter; had to guess when the camera needed/not needed the flash ? ? ?
Good Job on the In-jen-ear ring
I will find that Scheme somewhere, hate to disassemble the enclosure just because I'm so stupid ! ! !)
(Edited by Tinhorn at 1:37 pm on May 2, 2001)
05-02-2001, 12:43 PM
Damn man, now I have to try and build this thing too??? 8^)
05-03-2001, 03:08 PM
Hi Tinhorn / KsBowhunter,
Tinhorn..... I'm woikin' on it, I swear I am. ; )
Didn't see the MS20 schematics, I'll have to go looking.
I don't know how many times I've made something and then had to go back and rip it apart just to figure out how it works. ###Need to stop bein' so lazy and start writing things down!
Not sure I understand the bit about the light meter?? ###The circuit I made just disables triggering of the cameras shutter at a given light level.
KsBowhunter.... Yup , it just gets worse and worse. ###No rest for the weary.
05-03-2001, 07:34 PM
What I meant by the lite meter is I am not sure my eyes are calibrated enought to recognize when its so dark a flash is needed or when it's light enough to not need the flash.
I drew up the schematic, bread boarded it, modified, it, etc the apparently threw the mod'd one away, i found the orig sketch (that didn't work - naturally)
Here is the MS20 schematic...sorry it's not pretty like Your'n
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