Mosquito Repellent Circuit | Mosquito Repellent Circuit using 555 Timer | 555 Timer

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❖ Description ❖
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In this tutorial, we will look at How to make "Mosquito Repellent Circuit using 555 timer" Step by Step completely
555 timer IC is an Integrated Circuit that can be used for so many different types of applications like Timer, Pulse generation, Oscillator, a Memory element, etc.
Various mosquito repellent solutions like coils, liquid vaporizers, and creams, all have possible adverse effects on health. Then there are electronic mosquito repellents available in the market which are equally efficient and relatively safer. The concepts of these mosquito repellers are simple and we can build a simple mosquito repellent circuit at home easily by using 555 timer IC and few other commonly available components. Let’s see the concept of mosquito repellent circuit in detail.
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❖ Hardware Required ❖
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555 Timer IC
9V Battery with Clip
Breadboard
Jumper Wires
Piezo buzzer
1k ohm resistor
10k variable resistor
0.1uf ceramic capacitor
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❖ Audio Credits ❖
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SK-Hall - Elektric (Inspired By Alan Walker & K-391) [NCN Release]
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[@ESCcrasci]

Very useful. Awesome

[@CircuitsDIY]

ESC crasci thanks

[@shruthipullagurla8008]

How to know it's work or not

[@CircuitsDIY]

Tune frequency in b/w 20-200hz and place this circuit in room ...you will see mosquitos are driving away with this irretating sound

[@johnpap7299]

Dear Muftee, the RV1 is not adjust the frequency only, C1 R1 & R2 they have a balance to make the frequency, the duty cycle and the low-high duration.
In this case you need 90% High duration with 35 - 40 KHz frequency, of course the 555 can not do that so...you have to work with 45% high pulse AND may i suggest some violence?
Darlington transistor on the pin 3, inductor of 3.3 mH at 2 Ohms 1 Ampere for the load and PTW123 horn?
If you have an email and you wish, i can send you a schematic of "hell" for the mosquito.

[@sattitech]

dear can you send me a schematic plz its my project

[@sattitech]

dear can you send me a schematic .. because its my project

[@anirbanmandal3123]

Nice

[@CircuitsDIY]

Anirban Mandal Thanks

[@lokesh_r]

It's amazing. But please tell me how to check the frequency

[@CircuitsDIY]

Use oscilloscope to check and set the frequency

[@AhmedKhan-cm8kr]

Yes it's Working...

[@CircuitsDIY]

Thanks

[@iSLN1]

How to set the frequency or check the range of frequency??

[@debasishghosh7865]

Is the buzzer is a special type of buzzer for this purpose or any type of buzzer can be used?

[@CircuitsDIY]

Any buzzer but recommend this black one

[@bhanusampath6500]

How can I produce 25,000 hz frequency sound using this for my dog repellent project . Please help

[@CircuitsDIY]

This Circuit produce can 25khz ....but you have to tune it using oscilloscope etc

[@GeemathPathiranage]

Can I use a 10 nano Farad capacitor instead of 100 nano Farad capacitor?

[@CircuitsDIY]

Yes you can use

[@vigneshs552]

Is there any option to set frequency without using oscilloscope?

[@talipgunes7022]

You may simulate the circuit on software environments such as LTSpice, Proteus etc. Those would workz with small margin of error.

[@bhavikprajapati9526]

Sorry dude,
But, You haven't used oscilloscope or any other instrument to check the frequency.
And you said "Now we are going to set the frequency".
How?

[@kokyaw5370]

How circuit run? Plz tell me

[@CircuitsDIY]

Will found description in link

[@geminyrojan9284]

Can humans hear this sound
Plz tell urgent

[@CircuitsDIY]

Yes in audible range

[@abhiramm1715]

frequency of buzzer

[@CircuitsDIY]

It should be in range of 36Khz

[@JorgeRamirez-kv4jx]

I didn't hear the noice because of the music

[@whoisme678]

How was anyone expected to hear anything with that annoying row from music. In no uncertain terms the video is a waste of time because even if it could be heard, there was no way with that din.