Motion Activated Noise

[twizfire]

Please don't make me keep quoting The Trashcan Man. I've waited patiently for 2 days. I even kept reading up on this stuff but still can't quite grasp the transistor.

 

[twizfire]

Even though I'm probably talking to myself at this point, the base would connect to the 3V output on the PIR, the collector connects to the + on the PSU and the emitter would go to the relay?

 

[twizfire]

Okay, it looks like this is going to work. My problem now is that i need to find a way to delay the PIR from going off again. The first time it goes off, it will activate the Recording Module. Unfortunately, if there is a second motion after a couple second then it turns off the Recording Module. Is there any way to delay the PIR from activating the relay?

 

[Reloadron]

I'll look at it in more detail when I get home from work today. Like around 5 PM EDT in the US.

Ron

 

[Reloadron]

No, no, no. You have some problems in that drawing. You want the output of the PIR to drive the NPN transistor's base. Let me put a basic diagram together.

Ron

 

[Reloadron]

You want to set it up like the attached image. D1 can be a 1N4002 and is used to shunt the inductive kick of your relay. The transistor can be just about any general purpose NPN and the transistor base resistor between 1 and 10K depending on the transistor used. The drawing is rough but should give you the idea.

Ron

 

[twizfire]

I will give that a shot but I won't have time to get those other parts til this weekend.

Thanks again for your help.