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Q&A for How to Make a Door Alarm
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QuestionWhat is the principle of a door alarm?Community AnswerMaking the circuit closed when the door is opened. When the circuit is closed, the alarm sounds.
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QuestionWhat if I am deaf and can't hear a doorbell?Community AnswerInstead of a buzzer or door bell, connect a small light bulb circuit that will close when the button is pressed. Run the wiring to a bulb that attracts attention, such as a red one.
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QuestionHow can I install the same alarm design for a desk?Community AnswerIf you have a drawer on your desk, then attach one end of the alarm to the drawer's roof, and the other near the inside handle.
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QuestionWill this model work for a burglar alarm?Bubu639Community AnswerIdeally, you should have a proper burglar alarm fitted, but this alarm will work if you are inside the house at the time.
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QuestionHow do I implement this on a window?Bubu639Community AnswerIf you attach the alarm to the base of the window or a secure section and then attach the string to the handle, the alarm should work.
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QuestionHow do I make a business out of these machines?Community AnswerSame way that you would any other business. Pitch your product to the public and try to sell it. It is important to know that there are many things like this in the market so you will have a lot of competition.
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QuestionWhat if I come in and forget about the alarm? And how loud is the buzzer exactly?Upnorth HereTop AnswererThe alarm will make noise when someone opens the door, if it has been armed. The buzzer loudness depends upon what type of buzzer you use. They may be VERY loud or only loud enough to "announce" an intruder (like a distant doorbell), as you choose.
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QuestionBut wouldn't I need to glue it each and every time someone enters the room, and how do I close the buzzer?Upnorth HereTop AnswererNo, the string attached to the door pulls out the insulating cardboard, activating the alarm. To stop the alarm you need a different piece of cardboard (or a switch to disconnect the battery), but to re-arm the alarm you simply replace the cardboard insulator (which is attached to the string that is attached to the door) by clamping it between the wires in the clothes pin.
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QuestionIs a kid able to build this?Community AnswerYes, with adult supervision.
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QuestionHow will the door alarm help?Upnorth HereTop AnswererIt will make noise when someone opens the door without first disarming the alarm, alerting you to possible intruders.
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QuestionWhat are the advantages of making a door alarm?Community AnswerWith this alarm, you can be safer from intruders. If someone tries to come into your house, the alarm will go off.
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QuestionHow do I prevent the door alarm from going off when I enter the room?Community AnswerYou need to reset it after every use. Just don't reset it after you leave the room. If you want to reset it after you leave the room, it's really not a big deal if it goes off. The purpose is to alert you if someone has entered the room so if it goes off as you're walking in, that's fine.
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QuestionCan I use a steel cloth clip instead of wooden cloth clip to make a door alarm?Community AnswerNo, because almost any type of metal (except aluminum) conducts electricity.
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