CELL PHONE DETECTOR

7,886

67

24

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

Supplies:

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

Share

    Recommendations

    • Fandom Contest

      Fandom Contest
    • IoT Challenge

      IoT Challenge
    • Party Challenge

      Party Challenge

    24 Discussions

    0
    None
    willBR

    Question 3 months 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
    None
    willBR

    Question 3 months 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
    None
    icengMassS3

    Answer 8 months ago

    The Author did not make a Printed Circuit./

    No pcb available :-/

    0
    None
    AbeidK

    11 months ago on Step 1

    Can you give me working principle of this circuit ?

    0
    None
    SukeshH

    1 year ago

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

    0
    None
    VSMuley

    Question 1 year ago on Introduction

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

    0
    None
    VarrickA

    Question 1 year 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
    None
    netwjennie

    1 year 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.

    5 replies
    0
    None
    xplorelabsnetwjennie

    Reply 1 year 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
    None
    netwjenniexplorelabs

    Reply 1 year ago

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

    0
    None
    xplorelabsnetwjennie

    Reply 1 year ago

    ya dude thanks i have attached the schematics check it out

    0
    None
    xplorelabsHowardS31

    Reply 1 year ago

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

    0
    None
    wstewl

    1 year 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?

    1 reply
    0
    None
    xplorelabswstewl

    Reply 1 year 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
    None
    sundarraj raj

    1 year ago

    nice brother

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

    1 reply