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PROJECT DESCRIPTION

The main scope of project is to sense the presence of an activated mobile phone from a distance of one-and-a-half meters to prevent the use of same in the examination halls.

Certain places where uses of mobile phones are not allowed like exam hall, temple, offices and theaters, in those places to detect and restrict the use of mobile phones this proposed system is very helpful. This system can detect any active cell phone i.e. when some is trying to make a call or receive a call, sending a message or receiving a message. In the above mentioned conditions a buzzer will sound, in the presence of an active cell phone in the radius of one and half meters.

In this project an RF detector using tuned LC circuits is formed for detecting signals in the GHz frequency band used in mobile phones as the transmission frequency of mobile phone ranges from 0.9 to 3 GHz.

A capacitor is used to form a part of the LC circuit as C while the lead of the same forms the L to receive RF signals from the mobile phone. When the mobile phone is activated the RF transmission signal is detected by the detector and starts sounding a beep alarm and the LED blinks.

PROJECT HIGHLIGHTS
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Non-Microcontroller Project.
Branding-free material.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
BLOCK DIAGRAM
Hidden Active Cell Phone Detector
Hardware Requirements
  • OP amp
  • 555 Timer
  • Transistor
  • LED
  • Resistors
  • Capacitors
  • Piezo buzzer
  • Switch
  • Battery
  • Antenna
Software Requirements
    None
OTHER INFORMATION
Battery not included in the kit due to Courier service prohibition. Please buy eight AA CELL 1.5V batteries for this project.
Q & A
Q:  How can I increase the range of sensing the mobile phone?
A:  One cannot increase the sensing range with this project, but using expensive technology it is possible.
Q:  Can this project sense any mobile within the area of a room?
A:  No, the sensing distance is limited to a range of 2 feet only.
Q:  Will it jam the mobile phone signals?
A:  No,it will only give beep sound on detection
Q:  If I want to jam the signal what necessary thing should be added?
A:  Jammers are totally different concept and are commercially available
READ WHAT OTHERS HAVE SAID
Average Rating
 4.3/5
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Showing 4 of 14 reviews Show All
Shimpy Srivastava, Orissa on 28th April, 2016, 05:31 PM

I got to know about edgefx through google. And, the keywords i used to find edgefx was electronic project for final year students.
I have decided to buy project from edgefx because it was under my budget. I like the most about edgefx was the software.
Yes, the kit was delivered on time with right components.
Yes, i have called to a person the number which is website. He has helped me in purchasing the project.
For me everything was good.
Yes, i would like to give reference to my juniors and friends.

Akash P, Kannur on 26th November, 2015, 03:28 PM

I was searching Hidden Active Cell Phone Detector and I find in the Google.
I found my project Title so decided to buy that project
I purchase through online

appu nair s, kottayam on 13th November, 2015, 06:27 PM

I searched for the words like Hidden Active Cell Phone Detector and find in Edgefx in Google.
I found this project Title so decided to buy that project from Edgefx.
I purchase through online,with help of my friend

naveen, RANCHI on 12th November, 2015, 07:14 PM

I found this website by searching the keyword as cell phone detector.
We like explanation of sample videos and interested to take readymade kit.
purchased through online.

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