CELL PHONE DETECTOR

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Introduction: CELL PHONE DETECTOR

About: electronics and technology

When thinking about cellphone jammer i got a idea of making a circuit which is capable of detecting the phone's call and message. it may be incoming or out going

The project made is a cell phone detector which is capable of detecting the 2g,3g,4g cell phones and its signals

the circuit which is created is an OP-AMP circuit which is done be IC LM358IC

this project is cool to play with and very useful to teachers so that they can find the student's who are using cellphone inside class room

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Step 1: Watch My Youtube Video for Better Clarity

Step 2: Get the Components

LM358 ic

6.8m resistors

0.1uf capacotors

breadboard

500k potentiometer

connecting wires

LED

Bread Board: http://amzn.to/2jtZxH3
Collection Box(includes all): http://amzn.to/2BXEXGI

IC LM358 : http://amzn.to/2BUVqLH

Connecting Wires: http://amzn.to/2BUVqLH

i have provided link to get the components

Step 3: Check for Connections

CHECK IT OUT GUYS I HAVE ADDED THE SCHEMATIC DIAGRAM FOR THE CIRCUIT

check the connections from the above image and check the video for further clarity

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    24 Discussions

    0
    willBR
    willBR

    Question 1 year ago on Introduction

    Hi,

    I laid out the components on breaboard in what appears to be precisely to the same layout in your video.

    However, the LED lights up continuosly and the buzzer beeps continuously even when my mobile phone is switched OFF.

    So, it would appear that I've erred somewhere and despite going over the layout and ensuring that the components are as described can't figure out the problem.

    Any suggestions, please?

    Thanks


    0
    willBR
    willBR

    Question 1 year ago on Introduction

    Hi,

    Could you provide additional information on the 500K potentiometer, please?
    Does it have 3 or 4 pins/
    Is there a code/reference number?

    Thanks

    0
    MassS3
    MassS3

    Question 1 year ago on Step 3

    I want pcb layout pls

    0
    iceng
    iceng

    Answer 1 year ago

    The Author did not make a Printed Circuit./

    No pcb available :-/

    0
    AbeidK
    AbeidK

    1 year ago on Step 1

    Can you give me working principle of this circuit ?

    0
    SukeshH
    SukeshH

    1 year ago

    what is there extra in pdf files..if i upgrade to premium.

    0
    VSMuley
    VSMuley

    Question 2 years ago on Introduction

    In video only one stage ckt is used,while schematic has 2stages .why?

    0
    VarrickA
    VarrickA

    Question 2 years ago on Step 1

    Can this circuit, with the exact components used, work for 4G? Because I tried and can’t seem to detect 4G

    0
    netwjennie
    netwjennie

    2 years ago

    Nice, but what's the range ? I have to copy also HowardS31 comment "Nice, but a schematic diagram would be helpful." And why not comment your video instead of putting blow your mind music, it's a little disturbing ! Don't take it bad, I just want to understand better what you made which result is amazing.

    0
    xplorelabs
    xplorelabs

    Reply 2 years ago

    Sure yaar ....I'll make it a better one next time :) .... Thanks for ur review .... I'll provide the schematic diagram soon ...for u guys ..... :)

    0
    netwjennie
    netwjennie

    Reply 2 years ago

    Thanks, I'll be waiting for the schematic, keep up the good work, very inventive.

    0
    xplorelabs
    xplorelabs

    Reply 2 years ago

    ya dude thanks i have attached the schematics check it out

    0
    netwjennie
    netwjennie

    Reply 2 years ago

    Right on man now you rock! Thank you.

    0
    karthicks12
    karthicks12

    Reply 2 years ago

    ;) ......

    0
    HowardS31
    HowardS31

    2 years ago

    Nice, but a schematic diagram would be helpful.

    0
    xplorelabs
    xplorelabs

    Reply 2 years ago

    Sure bro ....I'll make the schematic diagram ...soon for u ...just stay tuned ... To get it ...thanks for the comment :)

    0
    wstewl
    wstewl

    2 years ago

    Please tell us how far away the phone signal can be detected. Is it only right next to the circuit board?

    Would a better antenna make for a better range?

    0
    xplorelabs
    xplorelabs

    Reply 2 years ago

    Between 5 to 6 meter the circuit can detect the cellphone signals ....and xtend the antenna to longer one to increase the detection range

    0
    sundarraj raj
    sundarraj raj

    2 years ago

    nice brother

    does it works on low voltage (ie) voltage less than 9v??

    0
    xplorelabs
    xplorelabs

    Reply 2 years ago

    yah bro will work .....but not below 5v