First Post. Nice Site.
There is a lot of smart people and usefull knowledge here I have noticed.
I have been looking on here but can't find all the answers, So I figure I would put up a post.
Im looking for a circuit diagram or any help. I have a little bit of electronics knowledge.
Im looking to make a sensor circuit to cover a 6-7" round hole and set off a buzzer for a second or two then reset.
Something that can run on a 6 volt battery. Something that will not be set off by vibration/bang. Needs to go off with a non heat item. Such as a 2" or so material item passing thru it.
From what I have noticed it looks like a PIR will not work becaust it goes off with heat. Beam sensor seems to be to narrow.
I was looking at some light sensors but not sure if they would work correctly being used at night and then into sunlight with the same settings.
Thanks in advance for any help.
There is a lot of smart people and usefull knowledge here I have noticed.
I have been looking on here but can't find all the answers, So I figure I would put up a post.
Im looking for a circuit diagram or any help. I have a little bit of electronics knowledge.
Im looking to make a sensor circuit to cover a 6-7" round hole and set off a buzzer for a second or two then reset.
Something that can run on a 6 volt battery. Something that will not be set off by vibration/bang. Needs to go off with a non heat item. Such as a 2" or so material item passing thru it.
From what I have noticed it looks like a PIR will not work becaust it goes off with heat. Beam sensor seems to be to narrow.
I was looking at some light sensors but not sure if they would work correctly being used at night and then into sunlight with the same settings.
Thanks in advance for any help.