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need circuit for PIR sensor

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manz

New Member
does anybody have or could tell me where to get the circuit for PIR sensor,you know,the thing to detect motion.Just as simple as if there is a motion and the light will be turn on.

thanks..
 

epilot

Member
manz said:
does anybody have or could tell me where to get the circuit for PIR sensor,you know,the thing to detect motion.Just as simple as if there is a motion and the light will be turn on.

thanks..
http://www.web-ee.com/Schematics/PIR/irsystem.pdf

but a ready PIR package is very better than making one i think
bye the way you need for a timer too...

good luck
 

manz

New Member
hm thanks for the url. Timer?? if that is for the PIR circuit, its ok, i think i just can add any timer circuit (power on delay or power off delay circuit) to the output of the PIR circuit relay.Thanks for reminding :wink: . i know there is PIR package on the market but i just couldn`t find one,yet.I`ll have a look to the circuit 1st. thanks epilot.
 

epilot

Member
manz said:
hm thanks for the url. Timer?? if that is for the PIR circuit, its ok, i think i just can add any timer circuit (power on delay or power off delay circuit) to the output of the PIR circuit relay.Thanks for reminding :wink: . i know there is PIR package on the market but i just couldn`t find one,yet.I`ll have a look to the circuit 1st. thanks epilot.
a PIR package has not any really timer in it NORMALLY and when PIR detects someone its relay will be active for only a few secends and you said you want to turn on and off a light by it(only for places that a person does a motion not for setting rooms..)so you need for a timer...

you can find pir packages in the BURGLAR stores
 

manz

New Member
will be active for only a few secends and you said you want to turn on and off a light by it(only for places that a person does a motion not for setting rooms..)so you need for a timer...

yup,this is what i have in mind.i have a timing circuit that works like this,the timer relay will be de-energize a few sec/min (as I pre-set it) after the last input voltage it recieve (that will be from the motion sensors circuit).so this timer circuit will turn on/off the light.i think it`s ok for the timing device,just need to work with the motion sensors circuit :wink: but anyway i`ll try to find the PIR pakage 1st as it is so much more easier for me though :lol:
 

ljcox

Well-Known Member
Have you done a search for "timer" in this forum? There have been many discussed in the past.
 

ericgibbs

Well-Known Member
Most Helpful Member
does anybody have or could tell me where to get the circuit for PIR sensor,you know,the thing to detect motion.Just as simple as if there is a motion and the light will be turn on.

thanks..
hi,
Got this from the web some time ago, cant vouch for it working, needs checking out.:)
 

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