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Design an alarm circuit (details below)

Hi there i need a circuit designed that is to feature the following.

Use 1x 12v A27 Battery: [url removed, login to view]

With this Audio Buzzer [url removed, login to view]

Circuit is to feature a sense line that when broken powers the buzzer.

I'd like to know approximately how long the circuit will run for (standby not buzzing) before having to change the battery.

All parts are to be accessible from this website/local store: [url removed, login to view]

Any further questions please ask.

I have tried this circuit but with the above mentioned buzzer and speaker and it doesnt seem to work. [url removed, login to view]

Compétences : Génie Électrique, Electronique

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Concernant l'employeur :
( 29 commentaires ) Perth, Australia

N° du projet : #12681182

Décerné à :

bijan01in

Hi I am interested to your project. I am familiar with electronics, PIC microcotroller as well as PCB design by Eagle. Thanks.

35 $ AUD en 1 jour
(44 Commentaires)
4.9

11 freelance ont fait une offre moyenne de 89 $ pour ce travail

uetian09ee506

I am an Electrical Engineer having specialization in Electronics and Control, teaching in Electrical Department at FAST National University Pakistan. I am also persuing my MS degree in Electrical Engineering with speci Plus

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mechatronicsengr

Hi, I hope you are doing well. I need to know what kind of wire it is, is just a simple wire like alarm clock mentioned in the link or is it live wire? Looking Forward,

54 $ AUD en 1 jour
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4.6
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gagan1172

I am an Electrical Engineering Masters degree student and I think that I will be able to fulfill your desired job since I have done IELTS and I have a good proficiency in English as well and I will do this job even in Plus

10 $ AUD en 1 jour
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Mashallah786

Contact me for the better assistance and full support in your project.I will not only complete your project but also will give you full support to understand it with comments ,images and demo videos. You will pay me Plus

40 $ AUD en 1 jour
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0.0
hamoda22

Hi i can do your project and save you time but i wiĺl take some times 5 day will be great

30 $ AUD en 5 jours
(0 Commentaires)
0.0
fusionsoft4

Dear Client, Thanks for providing us opportunity to place bid over the project and communicate with [url removed, login to view] mainly deal in web development, SEO, Android App, software testing and graphic design. Our vision is to b Plus

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goldsea808

[url removed, login to view] [url removed, login to view] [url removed, login to view] ================================================================ Please hir Plus

500 $ AUD en 1 jour
(0 Commentaires)
0.0