ALL IN ONE REPELLENT CIRCUIT :Insects, mosquito, lizards and dog


ALL IN ONE REPELLENT CIRCUIT INTRODUCTION

Now i am going to introduce you an All in one Repellent circuit.
Ya i mean it, by using this circuit you can keep nasty insects, Mosquitoes, lizards, and dogs away.

Lets look the PRINCIPLE of this circuit:-

This circuit works under the Principle of Ultrasonics. As you may know, we can't hear Ultrasonic sounds but animals or insects like Mosquitoes, bees, lizards and even dog can hear Ultrasonic sounds well.


How this repellent circuit keeps Insects, lizards, Mosquitos and Dogs away?



As i mentioned above, they can hear Ultrasonic sonic sound well at a particular Frequency range. Above that, they may get IRRITATED continuously. That's how this repellent circuit works.

CIRCUIT DIAGRAM FOR ALL IN ONE REPELLENT CIRCUIT.


all in one repellent circuit





CIRCUIT EXPLANATION FOR ALL IN ONE REPELLENT.

The ALL in one REPELLENT CIRCUIT mainly consisting of a 555 timer, Frequency determining network, and a buzzer.

The 555(NE555) timer is wired here as an ASTABLE MULTIVIBRATOR, which will generate Square waves continuously upon the power supply of 12V.

The output Voltage from pin3 of NE555 is given directly to a Buzzer by a COUPLING capacitor C2.

The Frequency determining Network is one of the Important part of this all in one repellent circuit. It consists of two Resistors R1, R2 and a capacitor C.
They determines the Frequency of the circuit.

Each our prey's (Mosquitoes, Lizards, Insects and Dog) requires separate Frequencies to get REPELLED. So we have to tune this Frequency Network. The tuning is made possible by selecting a Variable Resistor R1, R2, and C

By giving the supply Voltage of 12V the Buzzer will vibrate at the predetermined Frequency (By Frequency determining Network)
You can Try our Frequency Determining Tool to calculate the Frequency:-
FREQUENCY CALCULATOR

COMPONENTS REQUIRED FOR ALL IN ONE REPELLENT CIRCUIT
Here is the list of components required to wire up this CIRCUIT.

IC1 - NE555

C1 - 0.01μF

C2 -
1μF
Buzzer
12V Battery

*The value of R1, R2 and C is not listed Because it is different for Each REPELLENTS.

Value of R1, R2 and C.

For repelling Mosquitoes:-

R1 - 10K
R2 - 10K
C - 1nF


For Repelling Lizards


R1 - 1K
R2 - 20K
C - 1nF


For Repelling Dogs


R1 - 10K
R2 - 1K
C - 1nF



Why I can't Hear the Output of all in one repellent circuit?


You can't hear the output of this circuit. Because the output generated from Buzzer is in the Frequency range of Ultrasonic. Ultrasonic sounds are situated far away from the audible sounds in Frequency chart. That is why we can't hear it.


How to check the output, whether all in one REPELLENT circuit works?


It is pretty easy to check the output of this circuit, you can use an LED or a multimeter to check whether their is any output Voltage at pin3 of NE555.





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33 comments:

  1. is this working

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    Replies
    1. how wide is the radius or diameter of this device?

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  2. Sir i want to know
    what the meaning of 0.01₹f
    what the meaning of the small box besides the faradays f sign

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  3. Sir i want to know
    what the meaning of 0.01₹f
    what the meaning of the small box besides the faradays f sign.
    Please help

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  4. 0.01 mF Capacitor, it is a ceramic type capcitor.

    Having no polarities. 0.01mF capacitor code is 104

    Have a nice day......

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  5. can i know wher can i buy this ??

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  6. can i know wher can i buy this ??

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  7. I hope Everything mentioned here is available in your local electronics store......

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  8. I hope Everything mentioned here is available in your local electronics store......

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  9. sir 0.01 uf code is 103 its not 104

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  10. Oh....i am so sorry....

    Thank you rohin for your notice....

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  11. will it produce any irritation to us

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  12. Sai,
    No, it doesn't irritate us.............

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  13. dear im confuse

    1- im conecting for R2 im connecting both pin 2 and pin 6 with R2 , is it right ??

    2- which type of buzzer we can use?? now i m using normal 12volt buzzer maybe piezo buzzer will best for this..

    please reply of that

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  14. Hi Lodhi,

    1) Here, R2 is a Variable Resistor(POT) so Pin6 of the IC is connected to the second or variable pin of R2.

    2) 12V buzzer will works best.....

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  15. Does this circuit works for anyone as Mosquito repellent ??

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  16. Hello TITTU.I've made this circuit there and I used a LED to see if pin3 of the IC has outpout and it doesn't turn on.

    When I use the multimetre it shows a voltage of 5mV.

    Can you help me please?

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  17. Nick, What is the Applied input voltage.....?

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  18. Oh and one more thing. I don't have a variable resistor but a common one.Do I have to connect pin6 anyway?

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  19. Do you check the output voltage at pin 3,
    without any capacitor or resistor connected to it...?

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  20. If you don't have a Variable Resistor, then use a fixed value (Normal Resistor). Also connect the pin 6 to pin 2.

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  21. The capacitor C2=1uF was connected

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  22. Sir,Does this requires any switch....?

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  23. Sir ,Does this require any switch............?

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  24. Can I use a colpitts oscillator as mosquito repellent circuit

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  25. What voltage should i get in pin 3?

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  26. hi i made this circuit but inthis i can able to ear the sound... pls help me

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  27. Sir, Is there any circuit operable on 1.5 or 3 V supply, to obtain the same results.

    ReplyDelete
  28. Is there any circuit operable on 1.5 or 3 V supply, to obtain the same results

    ReplyDelete
  29. Is there any circuit operable on 1.5 or 3 V, to obtain the same results.

    ReplyDelete