You are going to use simple circuit that when closed with a switch will set off an alarm. The switch is going to be a clothes peg!
First up - what you are going to need:
- Approximately a meter of flexi-wire
- A 9V battery (the correct scientific term is a cell)
- A 9V battery (cell) holder
- A wooden clothes peg
- 2 thumb tacks
- A sharp knife
- Electrical insulation tape
- An small electric buzzer
And here is how it is done -
- Strip about 1cm of the plastic insulation off the one end of both wires of the flexi-wire using the sharp knife.
- Attach both wires of the one end of the flexi-wire to the battery holder by joining the wires together and then wrapping insulation tape around the joins.
- To the other end attach the buzzer in much the same way as you did the battery holder. To check if all is good up till now, if you attach the battery the buzzer should sound.
- About half way down the wire cut one of the wires in half, leaving the other one in tact. Strip the ends so that about a centimeter of wire is exposed.
- Press the thumb tacks onto the inside of the opening end of the clothes peg. Before you push them all the way in, place the end of the wire you have just stripped under each of the thumb tacks and push them in hard so that the wire is held there.
- Attach the battery. If everything is attached correctly, with the clothes peg closed, the buzzer should buzz. If it does not, you need to check your connections on the battery, buzzer and peg.
- Once everything is working, open the clothes peg and jam it into the gap of a door and it's frame or in a slightly open window.
- Alternatively, put a piece of cardboard or paper between the thumb-tacks that has a string attached. The other end of this string can be attached to anything that is going to move, with the idea that if that object is moved the cardboard is pulled from between the thumb-tacks.
- Once the thumb-tacks touch - if all is in working order, the buzzer will alarm you to something out of the ordinary.
7 comments:
Hi there juѕt wantеԁ to give you a
quick hеaԁs up. The tеxt in your pοst seem tο be running off thе
screen in Chгome. I'm not sure if this is a format issue or something to do with web browser compatibility but I figured I'd
pοst to let you knoω. The layout looκ greаt thοugh!
Нopе уou get the issue гesolvеԁ ѕοon.
Thanks
My site; hааrausfall ()
I'd like to find out more? I'd сare to find out somе addіtіοnal
infoгmatіon.
Αlso visit my blοg poѕt:
nagelpilz medikament tabletten
You ought to be a part of a contеst for onе of the most usеful websites online.
I'm going to highly recommend this site!
My blog post chatroulette
Hi, i think that i saw you viѕited mу weblog so
i camе to “rеtuгn the favoг”.
I am trying to find thingѕ to improve my site!
ӏ suрpοse its oκ to uѕe somе
of уour ideas!!
My blog ... Emorroidi sangue cura
Why uѕers still use to гead news papегѕ when in this tесhnolоgicаl
ωorlԁ all is avаilable on
net?
Herе is my web sіte; cure for hemorrhoids
Hello, I wish fοr to subѕcribe for this blog to
take neweѕt upԁates, therefore where cаn
i ԁо it pleaѕе help.
my ωeb blοg: chatrandom
It's great that you are getting ideas from this paragraph as well as from our discussion made at this place.
Here is my web blog: nagelpilz
Post a Comment