Latching Touch Sensitive Alarm Circuit on breadboard

No video

Latching Touch Sensitive Alarm Circuit on breadboard | 555 Timer project #2

Рет қаралды 79,185

Elonics - Electronics Projects on Breadboard

5 жыл бұрын

A Tutorial on How to make a Touch alarm / Touch sensor circuit that latches the output whenever our skin (finger) or any object with negative charge gets in contact with a touch wire. An explanation of how this circuit works is also included in this video.
The link to project page & circuit diagram: elonics.org/to...
Link to previous tutorial (Touch On - Touch Off circuit): • Latching Touch Sensiti...
Components required:
* 555 Timer IC
* BC547 (You can use any npn transistor)
* A buzzer
* LED
* Momentary Push Button Switch
* Resistors 1 x 10K, 1 x (The series resistor for LED's)
* Breadboard
* Few Breadboard Connectors
* (5-12)V of DC power supply
This channel has a lot more electronics projects & 555 timer projects. So feel free to check them.
-----------------------------------------------------------------------
For more electronics projects, visit: elonics.org/
Like our Facebook page: elonics/
Don't forget to Subscribe!

Пікірлер: 92

@ElectronicswithReyon-yp2dy Ай бұрын

Most circuit videos not explaining theory. But you explanied that brilliently. I learn a lot from you. Thanks a lot. Keep it up the good work.

@robitops1547 4 жыл бұрын

Practical with theory + Animation. Awesome job

@haroonraseeth4457 2 жыл бұрын

Mini project without arduino video Podunga please 😭😭

@UsualYaddaYadda 2 ай бұрын

Thanks. Very intuitively explained. Great visuals and no nonsense talkthrough.

@bhavanireddy7248 29 күн бұрын

I tried it &got output tqsm sir for explaining it very clearly.. Sir please provide report for the above touch alarm circuit

@user-jq6qm4kb9l 7 ай бұрын

Is it possible to use a resistor that has a value of 390 Ohms or greater for a green LED (when giving 9 volts of supply)?

@newworld5733 2 жыл бұрын

Awesome Boss, keep it up, that's how engineers are different from others. Thanks a lot

@lcpthr6861 2 жыл бұрын

This circuit, which act as monostable multivibrator or astable multivibrator or schmitt trigger ? Tell me bro 🙂

@electronicshelpcare 5 жыл бұрын

Super idea.

@GeorgeJFW 5 жыл бұрын

Well done!

@vaibhavnagare8549 5 жыл бұрын

Nice bro keep posting videos love you bro

@siamakaghazeinali 2 жыл бұрын

Is there a way if the theft using gloves it be such sensitive to detect touch? The body has electromagnetic field.

@user-jq6qm4kb9l 7 ай бұрын

The circuit was working earlier, but I had to put in the transistor backwards for it (collector connected where the emitter is meant to be, and vice versa). However, now it is working but the circuit activated immediately after connecting the battery, and the pushbutton is resetting the circuit is expected. Touching the wire seems to do nothing, unlike earlier. I have already checked the circuit several times and switched the transistor back and forth. I did not change anything, it was simply stored in a drawer in my room. The LEDs stop working quickly, and I’ve had to replace it many times (I’m using the correct value for the resistor connected to LED).

@harshitsaxena5602 5 жыл бұрын

Great work bro keep doing

@naderhumood1199 5 жыл бұрын

V nice .....Many thanks Sir........it's great.

@santiagomaciasvillegas2186 5 жыл бұрын

Eres genial amigo le mando un abrazo desde San Jerónimo Antioquia Colombia grácias

@elonics 5 жыл бұрын

muchas gracias

@viveksharma7675 3 жыл бұрын

I need to make it less sensitive. Buzzer should be work only when the wire touched. Is it possible?

@prateekmahajan190 5 жыл бұрын

The explanation is great, please make some projects with Arduino or esp8266

@elonics 5 жыл бұрын

Thanks. If everything works as planned, I'll start making projects on Arduino from the beginning of next month.

@prateekmahajan190 5 жыл бұрын

Elonics - Electronics Projects on Breadboard That's awesome, thank you bro. Keep up the good work.🙏

@praveensagar3529 5 жыл бұрын

Why no videos after this

@aungmyokhaing6795 6 ай бұрын

How to build 3pin IR receiver instead of touch in these same function or circuit? Please explain.

@suswethamangena6539 2 жыл бұрын

Sir, can u pls tell me the value for led series resistor?

@electronic7979 5 жыл бұрын

Very good 👍

@hssabir3340 Жыл бұрын

Great explanation. I made it. But buzzer is working only if resister and open cable together. Please help me

@knowthrvdo 11 ай бұрын

make one video on break failure circuit It is also a great topic for a mini project and on KZfaq their is no video is available in the way you explain projects

@GreatIndianCreator07 9 ай бұрын

Sir i want to close it after some delay please tell how to do that that it auto turn off after 3 sec

@mdsharook894 9 ай бұрын

it works 2 3 times but after that Keep buzzering after reset button what can i do

@ArchanaKumari-ii3ky 5 жыл бұрын

NICE! Huh ? When will next video come 😠

@elonics 5 жыл бұрын

Little busy. Might upload a video within a week.

@ArchanaKumari-ii3ky 5 жыл бұрын

Video Video Video

@PramodKumar-si4rr 5 жыл бұрын

@@ArchanaKumari-ii3ky Unsubscribe simply

@lcpthr6861 2 жыл бұрын

Which principal are used here monostable multivibrator ,astable multivibrator or schmitt tiger.. Tell me bro

@Fluffypotatoes4 11 ай бұрын

How can I make this only start when you stop touching it?

@sreejachandran1525 5 жыл бұрын

Super

@aishwaryaravikumar6049 4 жыл бұрын

Nice work.... I want 2 use this circuit to turn on wn supply is given and then reset with button. How can i do this??

@electroniquepassion 5 жыл бұрын

Thank

@sagarghatti 5 жыл бұрын

Nice bro

@ShravanKumar-di7ii 4 жыл бұрын

Can we use this to sense water

@xavierkang2974 4 жыл бұрын

How do u connect the same button but with 2 legs only? Pls help

@mysticaldimples4345 5 жыл бұрын

Can we use a puedo electric sensor in it

@ARAcademyTamil 5 жыл бұрын

Please do some Arduino projects

@rvil2612 7 ай бұрын

How i make the PCB design of that project

@ashokaem1643 3 жыл бұрын

nice sir

@KBtek 5 жыл бұрын

I wanna make 2 meter proximity sensor can you please help me.... Thanks

@dhrubajyotisarkar5394 4 жыл бұрын

Sir... In my case, it works when I touch the negative supply wire... What's the reason...?

@hgameryt6151 2 ай бұрын

YES SAME HAPPEND TO ME ALSO WHEN I TOUCH BOTH THE TRIGGER INPUT AND NEGATIVE TRAIL IT WORKS OR ELSE IT DOESNT ,WHAT MAY BE THE REASON DUDEE DO U KNOW ???

@user-cl3hp7dc7c 9 ай бұрын

Sir how to give the power supply?

@manvisharma1173 5 жыл бұрын

Alright I made the circuit but it won't shut up and isn't obviously touch sensitive what now

@hamzanadeem8469 Жыл бұрын

Bro is ma AP na Resistance kit na OHMs ki use ki ha bro tell me please as soon as possible

@sakshamsharmagsec4529 3 жыл бұрын

this circuit is not working on tinkercad please help....

@sherrysaeed5378 3 жыл бұрын

Who many range this circuit

@pritamsaha614 5 жыл бұрын

Where is the nxt part ... i have been waiting since months .... sir , i need the circuit of the nxt video very badly.... upload it 🙏🙏

@elonics 5 жыл бұрын

It's here: kzfaq.info/get/bejne/bbSEoaeksbuoqoU.html

@vuka9484 Жыл бұрын

Can you give me a flowchart of this circuit algorithm?

@VijaySingh-eb6yz 2 жыл бұрын

Hi Can you tell that how we can make a secured atm with sound and touch sensor

@VijaySingh-eb6yz 2 жыл бұрын

If yes you can message or leave it

@santoshdharme5927 5 жыл бұрын

Hey please upload a video on a FM transmitter

@i.mpossible 4 жыл бұрын

Continue sond is on... Any solution?

@phonemyinthein9832 4 жыл бұрын

Hi...It only works when i touch the negative supply and pin 2 at the same time or.....connect pin two to negative supply.

@lcpthr6861 2 жыл бұрын

Same

@lcpthr6861 2 жыл бұрын

What will do

@kashifjehangir9572 5 жыл бұрын

Please send a circuit diagram and working

@SachinSingh-cl9nq 4 жыл бұрын

Sir i want to use LDR in this circuit instead of touch wire what i have to do

@elonics 4 жыл бұрын

That'll be a totally different circuit. You can try modifying this circuit: kzfaq.info/get/bejne/qM6phtlpyrbbqYE.html

@bhanusampath6500 5 жыл бұрын

Can I produce sound frequency of 25,000 hz using this same circuit

@elonics 4 жыл бұрын

You should use another 555 timer IC in astable mode to generate the required frequency

@bhanusampath6500 4 жыл бұрын

Can you please help in making dog repellent system which is my project Target is to produce 20,000+ hz sound frequency

@chanchalsharma2479 4 жыл бұрын

sir in my citcuit it works by sensing object ,when i come to near it then it works without touching but how is this possible

@elonics 4 жыл бұрын

Because of induced electrostatic charge. It works similar to how two plates accumulate charges of opposite polarity in a capacitor

@sakshikadam1417 4 жыл бұрын

Sir, how to make the electronic music cup.

@elonics 4 жыл бұрын

You can directly purchase it. Ask for a "Buzzer" or "Piezo-Buzzer"

@jeymarnagac1640 4 жыл бұрын

What is the value of first resistor did you put??

@elonics 4 жыл бұрын

You mean the resistor used for the LED? It's 220R

@rajeshmeher4017 5 жыл бұрын

Bro please upload a video on cell phone signal jammer

@nenebaez4145 4 жыл бұрын

Hello, could you make a video tutorial on how to make motor sound?

@elonics 4 жыл бұрын

This might help: kzfaq.info/get/bejne/h5lxhNCjl9zPqHk.html

@aayushbanerjee1463 4 жыл бұрын

He says to connect pin 4 to negative rail but connects the 8 th pin to the negative rail...

@elonics 4 жыл бұрын

Both the Pins 4 & 8 are connected to each other. So connecting either of the pins to negative rail will do

@mayanksrivastava2302 4 жыл бұрын

Sir my led goes off only on holding the switch and gets on when on when I release it and buzzer constantly beeps. Plz help

@elonics 4 жыл бұрын

Try using a DC power source from batteries if you are currently powering the circuit from a AC-DC adapter. Next try removing the push button switch and manually apply +ve voltage at Pin-6. If it works now, the switch connections might be incorrect. Also the circuit is sensitive to AC sources if they are very near.

@sameeratreya414 4 жыл бұрын

@@elonics why it doesnt work when using ac dc adapter? Mine has same problem too. How to have the circuit results with ac dc adapter.

@nikt4392 5 жыл бұрын

Is there a circuit diagram and explanation for this video?

@elonics 5 жыл бұрын

It's in the video. I didn't create the project page yet

@praveensagar3529 5 жыл бұрын

Sir for every circuit please explain the way you did in this video

@neerajdadi1665 3 жыл бұрын

It is not working

@samatrey6357 4 жыл бұрын

Are u Indian?

@ShelliLoop 4 жыл бұрын

I guess you are in India. You talk too fast for you to use English. Maybe stick with Indian. We English speakers don’t talk “a mile a minute”. Especially with technical topics.