Thread: Another motion sensor build

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I know there is another long thread with a motion sensor build, this is just another way of doing it.



The parts involved with this build.



You need a couple short pieces of wire to connect the second outlet to the first.



Attach the grounds and the white wires.



Splice the black wires. Connect the red wire from the motion sensor to the outlets.



The finished product! I built two of these, so far!

I am using this to power a room as follows:

The four outlets that are switched by the motion sensor power

1) The motor on a prop that runs continuously anytime someone is in the room. This is a clown riding a bicycle on a treadmill.
2) A spot lamp shining on prop #1,
3) The power supply for a set of computer speakers. The speakers are fed from the headphone jack of a CD player that is on continuous play loop.
4) A 120V coil relay. The dry contacts are used as a trigger for Prop controller #1.

The feed through power goes to a power strip. This power strip feeds continuous power to:

1) The power supply for a Mantis prop controller (basic timer unit). This unit actuates a pneumatic prop a few seconds after the room comes to life. This prop is a clown that pops up over the back of the 4' cube jack in the box.
2) The power supply for a Monster Guts Nerve Center controller (keybanger unit). This is triggered from the Mantis unit when it opens (using the 2nd set of contacts). This controller fires the pneumatic valve that causes 'Humpy the Clown' to do his wall exercises.
3) Power for the CD player that runs continuous (but is only heard when the speakers are powered by the motion sensor).

I can probably control both pneumatic props from the Nerve Center (as well as provide the music). The room was built in stages, and we added props one after the other. Now that it is functional, and the house opens in two days, I will wait until next year to do something different.

Next build of these I will do slightly different. I will incorporate an on-off master switch for the motion sensor. That way I can turn off power to the room without having to go around the corner to unplug the extension cord. 2nd, I will put in a box with 4 outlets rather than use a power strip. The power strip works OK, but the box is easier to screw to the back of the prop, or to a wall.

That is exactly the way I built mine and it works great!

Great way to activate props , super tutorial, It's not expensive and pretty easy to build with your detailed instructions

Nice, compact, and more pro looking. Good job. I like.

Where did you find just the sensor? How much was it?

Very well made and inexpensive. Kudos!

Originally Posted by Crunch

Where did you find just the sensor? How much was it?

Crunch you can find these at home depot for $19.95 for the brown and $24.95 for the white

You buy the whole thng and remove the light sockets. I find them at walmart for under 15 bucks. Takes maybe 20 minutes to build one once you get comfortable doing it. they work great.

I would like to see the clown on the bike on the tread mill!!!!!!

Nice break down great pic's!