Attach the plywood to the wall next to your door.
Electric door alarm design brief.
The necessary specification was taken and the design was made according to this specification.
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Pir sensor based security alarm system applications.
The module was then constructed and tested.
It operated as.
Generally you ll want to attach your piece of wood close to the top of the door within a foot 30 5 cm from the.
This resource is useful for introducing components of engineering design ets from the next generation science.
This can be used in defense applications to detect the humans in war field.
You may need to drill holes in the wood to hang it from the hangers.
I am going to design and make a security device that will make my house look occupied when in fact it is empty.
Use removable wall hangers or tape to attach the wood on the wall.
You can attach alarm contact sensors to any door or window in your house or apartment and when armed you ll get instant alerts on your phone and tablet whenever they open.
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This can also be used as an automatic door bell circuit that rings the bell when human is detected.
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Design and make an electronic wristwatch with alarm facilities suitable for young people in the 15 19 age range a wide range of product types is possible from the open brief including simple wristwatches simple clocks simple stop.
Police statistics clearly show that houses are much more likely to be broken into when they are empty.
Design and make a product that uses timing technology closed design brief.
The aim of the project has been the design and construction of a door alarm system.
This can be used in the museums to protect the valuable things.
The door alarm system gives an audible alarm when the door handle to which it is connected to is touched.
Often even the police ignore house alarms when they are activated because of the high number of false alarms.
This can be used in toy applications that produce sound.
Electrical circuits are used in a wide variety of technological innovations from television sets to windshield wipers escalators to telephones.