How to make a Touch Sensor using BC547 transistor on Breadboard

  Рет қаралды 117,560

Tech StudyCell

Tech StudyCell

6 жыл бұрын

In this video, I have made a simple touch sensor circuit using the BC547 transistor on the breadboard. This touch sensor can be used as both touch sensitive light switch and door bell. I have also explained the working principle of the touch switch circuit.
I will request you to watch the complete tutorial video of the touch sensor project but you can also jump to any topic by click on the following Time Stamps:
00:34 How to design a simple touch sensor circuit using transistors
03:31 How to make touch sensitive door bell
04:30 Working principle of the touch sensor switch
Components Required for the touch sensor:
1. BC547 transistor 2no
2. 10K ohm resistor 1no
3. 220-ohm resistor 1no
4. LED or DC buzzer
5. 9 volt Battery
6. Connecting wires
7. Breadboard
Here I have made a simple touch sensitive switch using BC547 NPN transistor and I have explained the working of the touch switch using the touch switch circuit diagram for better understanding that how the touch sensor works.
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Пікірлер: 135
@laharimulagapaka1672
@laharimulagapaka1672 7 күн бұрын
It was working..Thank you for the circuit and your guidance
@sambasivarao2711
@sambasivarao2711 3 ай бұрын
I am Dr. Chivukula Sambasiva Rao, I did the project . Under Your guidelines it's work very well 🎉 TQ
@progamermajsc7230
@progamermajsc7230 4 жыл бұрын
Very nice video.I like the making part and the explanation of the schematic.Thank you for these videos.
@jeganathanmanickam6604
@jeganathanmanickam6604 4 жыл бұрын
Thank you, I tried this at my home, flawlessly worked!!
@TechStudyCell
@TechStudyCell 4 жыл бұрын
Great 👍
@jeganathanmanickam6604
@jeganathanmanickam6604 3 жыл бұрын
@@TechStudyCell I'm interested to try more projects like this, please help sharing any other videos or projects like this to try at home :) Thank You
@souravdey1227
@souravdey1227 5 жыл бұрын
you just made my day.... wonderful. I was having a very bad day. and then i found this video and tried this circuit. and voila!! I was happy... seriously man! thanks a lot for making me happy!! (Perhaps you will not understand why I am thanking you so much for such a simple thing, but never mind!!)
@TechStudyCell
@TechStudyCell 5 жыл бұрын
Thanks for the feedback.
@veeraraghul9626
@veeraraghul9626 5 жыл бұрын
Bro where to get metal wire
@Creativity06
@Creativity06 5 жыл бұрын
@@veeraraghul9626 you can take it from any wire.
@smash7777-
@smash7777- 6 жыл бұрын
Cool video....thanks for sharing! :)
@TechStudyCell
@TechStudyCell 6 жыл бұрын
Thanks for the feedback
@ron1368
@ron1368 6 жыл бұрын
Nice presentation! Goodjob thank you
@TechStudyCell
@TechStudyCell 6 жыл бұрын
Thanks...
@eb_reviews
@eb_reviews 6 жыл бұрын
Good explanation. Thank you
@amintimani6034
@amintimani6034 3 жыл бұрын
Which transistor did u use
@alphabandajunior5375
@alphabandajunior5375 4 жыл бұрын
Thank you so much your video has helped cause i have a project to submit at school. Thanks once again Sir... @Tech StudyCell
@SaranyaSaranya-uj3um
@SaranyaSaranya-uj3um 6 жыл бұрын
Hi.. Its nice video & got output perfectly by using both LED & BUZZER. Can u explain how its happening? I am unable to understand... how its working? By connecting base & collector
@TechStudyCell
@TechStudyCell 6 жыл бұрын
very small current flow through your finger from collector to the base so transistor turns on and start conducting. thus circuit turns on.
@kiranstech
@kiranstech 6 жыл бұрын
Good job... Well explained👏👏👏 all the best😇😇
@TechStudyCell
@TechStudyCell 6 жыл бұрын
Thanks
@onkarsonawane8279
@onkarsonawane8279 5 жыл бұрын
Is it possible to hold the signal on first touch upto next touch? Means on 1st touch light will glow and on next touch light turns off?
@rakeshtiwari594
@rakeshtiwari594 6 жыл бұрын
I am try to this project it's work very successful
@TechStudyCell
@TechStudyCell 6 жыл бұрын
great...
@tejasmhala8065
@tejasmhala8065 5 жыл бұрын
I try but not working
@tejasmhala8065
@tejasmhala8065 5 жыл бұрын
Sorry working successful
@laidman2007
@laidman2007 5 жыл бұрын
Very clear explanation. Thank you!
@amintimani6034
@amintimani6034 3 жыл бұрын
Tejas Mhala which transistor did u use
@j.clowers7223
@j.clowers7223 6 жыл бұрын
Very cool...please do more shows like this..
@TechStudyCell
@TechStudyCell 6 жыл бұрын
Thank you for the feedback.
@devendramuduli3136
@devendramuduli3136 5 жыл бұрын
Please tell how to make a single plate touch switch . And the led , connected in the output , will glow only on touching the metal plate . Means as soon as the finger is withdrawn the led will stop glowing.
@Rabi_Burud
@Rabi_Burud Жыл бұрын
Amazing bro ♥... Working smoothh.. I want your help brother.... Is there any good site from where we can buy such small components? I struggle a lot to buy these small tiny things
@rusulriad3072
@rusulriad3072 5 жыл бұрын
Can we use transicter Bc548 inside of Bc547 ??
@cndbrn7975
@cndbrn7975 Жыл бұрын
easy to follow step by step instructions, thanks ..
@whiterosemid
@whiterosemid 3 жыл бұрын
Can I drive a relay in place of LED? Thanks.
@MuhammadAsif-rv6br
@MuhammadAsif-rv6br 3 жыл бұрын
So nice and cool vedio i use this for my electronics project
@prathameshvarashetti2562
@prathameshvarashetti2562 5 жыл бұрын
Can I use higher values of resistor like 10 M 0r 1M ohm etc.
@bijenadhikari
@bijenadhikari 4 жыл бұрын
bro as the value of the resistor increases then the brightness of the light decreases. you can use the higher value of resistor when the supplied voltage or current is higher.
@matsbjnnes366
@matsbjnnes366 5 жыл бұрын
Do you have a circuit diagram for this?
@harvinderkaur9263
@harvinderkaur9263 4 жыл бұрын
Sir i want to operate 12 v relay woth touch sensor...can i?
3 жыл бұрын
you need a 1k ohm pullup resistor between led ground and positive 5v
@witek3437
@witek3437 6 жыл бұрын
If you remove transistor T1 and put a normal switch, will it be the same?
@TechStudyCell
@TechStudyCell 6 жыл бұрын
If you remove T1 with a manual switch then the led will glow when the switch is in on state. Then the circuit will no more a touch switch circuit.
@rahmatabadi3839
@rahmatabadi3839 5 жыл бұрын
How happens if you touch the left wire with left hand and the right wire with the right hand? Does it still work?
@bijenadhikari
@bijenadhikari 4 жыл бұрын
If you only touch the base then it will works its because there is also small amout of current flowing through your body. Now, turning to your question then the answer is yes. the circuit will work.
@fay1295
@fay1295 6 жыл бұрын
how did you find the calculations
@milindgautam2994
@milindgautam2994 4 жыл бұрын
What are the possible viva questions that can be asked from this project?
@mitulkumarchoudhary5867
@mitulkumarchoudhary5867 4 жыл бұрын
Kya bhai 😂😂😂
@milindgautam2994
@milindgautam2994 4 жыл бұрын
@@mitulkumarchoudhary5867 😂😂
@muthuprasanna9645
@muthuprasanna9645 5 жыл бұрын
bro can i give 24v d.c supply for BC547 transistor for running 24v d.c motor
@TechStudyCell
@TechStudyCell 5 жыл бұрын
It better to use a power transistor instead of BC547
@udiptadutta9826
@udiptadutta9826 2 жыл бұрын
Can we use bc548 instead of bc547 ?
@zackam5870
@zackam5870 6 жыл бұрын
can I use this circuit on PCB?
@TechStudyCell
@TechStudyCell 6 жыл бұрын
Yes
@bijenadhikari
@bijenadhikari 4 жыл бұрын
yes
@Ramdut369
@Ramdut369 3 жыл бұрын
Send pcb design
@amitricha688
@amitricha688 5 жыл бұрын
What is role of both resistors in the circuit????
@tiktokprince4961
@tiktokprince4961 5 жыл бұрын
The circuit works even with one transistor . What is the purpose of second transistor other than amplification purpose?
@TechStudyCell
@TechStudyCell 5 жыл бұрын
The 2nd transistor is used for better amplification.
@tiktokprince4961
@tiktokprince4961 5 жыл бұрын
@@TechStudyCell other than amplification any other purpose?
@mamtasaxena2303
@mamtasaxena2303 5 жыл бұрын
Nice video but we don't have great plate
@nitinnikam1808
@nitinnikam1808 3 жыл бұрын
my friend used this project but her project teacher ask question why used this 10k and 220ohm resistors in ckt
@nitinnikam1808
@nitinnikam1808 3 жыл бұрын
What the current across LED ??
@aakashsharma1043
@aakashsharma1043 3 жыл бұрын
While touching one touch wire, my LED Is glowing . can you rectify me
@fenshas
@fenshas 6 жыл бұрын
Can we do with one transiator .!!!🤔
@keynonketcher1525
@keynonketcher1525 5 жыл бұрын
White Feather ues but the led shoud be connected in series
@ElexorEnt
@ElexorEnt 2 жыл бұрын
great video and easy to understand
@TechStudyCell
@TechStudyCell 2 жыл бұрын
Glad it helped
@mahi_shan1361
@mahi_shan1361 4 жыл бұрын
Thanks for this video is very beautiful
@TechStudyCell
@TechStudyCell 4 жыл бұрын
You are welcome...
@bhojpuriyapandit5686
@bhojpuriyapandit5686 5 жыл бұрын
Make the emergency light of touch sensor use the bc547 transistor
@amintimani6034
@amintimani6034 3 жыл бұрын
Which transistor
@yedukondalumanyam2833
@yedukondalumanyam2833 6 жыл бұрын
Can I use 10ohm instead of 10k I'm resistor
@TechStudyCell
@TechStudyCell 6 жыл бұрын
it's better to use higher value resistance.
@amitricha688
@amitricha688 5 жыл бұрын
@@TechStudyCell why is it better to use high value resistance ? What will happen if we use low value resistance ? Will it affect the circuit?
@gjnewsinfo
@gjnewsinfo 6 жыл бұрын
Best for mini project
@TechStudyCell
@TechStudyCell 6 жыл бұрын
Thanks
@user-hs2tb8lq2t
@user-hs2tb8lq2t 6 жыл бұрын
What we call that board on which whole thing is done ?£
@ankitrajmahapatra4766
@ankitrajmahapatra4766 6 жыл бұрын
Nanobot it's called breadboard.
@anonymoussinger5453
@anonymoussinger5453 5 жыл бұрын
can I use BC548 transistor??... plzzz reply
@TechStudyCell
@TechStudyCell 5 жыл бұрын
yes
@divyanshisingh3275
@divyanshisingh3275 5 жыл бұрын
Nice
@TechStudyCell
@TechStudyCell 5 жыл бұрын
Thanks
@starlord814
@starlord814 5 жыл бұрын
Can you give description in chrome
@amitricha688
@amitricha688 5 жыл бұрын
By mistake if I connect negative of buzzer with positive of breadboard will the breadboard get destroyed
@TechStudyCell
@TechStudyCell 5 жыл бұрын
no.
@sravankumar601
@sravankumar601 4 жыл бұрын
By far the best video i saw
@TechStudyCell
@TechStudyCell 4 жыл бұрын
Thanks
@nocopyrightbollywoodsongs8561
@nocopyrightbollywoodsongs8561 3 жыл бұрын
Well explained
@sambasivarao2711
@sambasivarao2711 3 ай бұрын
Good explanation 😊
@xaviwasnt6852
@xaviwasnt6852 5 жыл бұрын
Can I ask for the circuit design?
@TechStudyCell
@TechStudyCell 5 жыл бұрын
After watching the video you can easily design the circuit.
@mamtasaxena2303
@mamtasaxena2303 5 жыл бұрын
Can it be done in PCB
@TechStudyCell
@TechStudyCell 5 жыл бұрын
yes
@janyak.m.3876
@janyak.m.3876 5 жыл бұрын
can i use male to female connecting wire
@TechStudyCell
@TechStudyCell 5 жыл бұрын
yes
@Luken__Vlogs
@Luken__Vlogs 6 жыл бұрын
The resistor is connected to the collector, not emitter....
@user-ur7xw6nv7z
@user-ur7xw6nv7z 6 жыл бұрын
You mean the 10K resistor, ok, but this person is one of the BEST to teach ELECTRONICS. CONGRATULATIONS And THANKS.
@jitendtakumar9244
@jitendtakumar9244 5 жыл бұрын
Ap kebal ek tar bala car ka touch sensor bana ke dekhao jo ki car ko touch krne pr bole ye do tar ka h
@veeraraghul9626
@veeraraghul9626 5 жыл бұрын
Where to get metal wire bro
@TechStudyCell
@TechStudyCell 5 жыл бұрын
Cooper wire can be used instead
@t.prasadpandu4357
@t.prasadpandu4357 Жыл бұрын
Super bro we got the experiment Thanks 👍 bro
@TechStudyCell
@TechStudyCell Жыл бұрын
Welcome 👍
@jilumaryjoseph4759
@jilumaryjoseph4759 5 жыл бұрын
Can I use this circuit to develop EV3 Touch Sensor.Pls reply
@efesseu
@efesseu 2 жыл бұрын
Mantap la awa
@47abdulrehaman37
@47abdulrehaman37 4 жыл бұрын
It is really awesome
@TechStudyCell
@TechStudyCell 4 жыл бұрын
Thanks 😊
@aakankshasingh1530
@aakankshasingh1530 4 жыл бұрын
Agr kisi dusre resistance ka resistor use krenge toh yeh work nhi krega kya
@TechStudyCell
@TechStudyCell 4 жыл бұрын
Yes it will work. But choose close resistance value
@aakankshasingh1530
@aakankshasingh1530 4 жыл бұрын
@@TechStudyCell thnx☺
@disinlungkamei2869
@disinlungkamei2869 Ай бұрын
very nice 👍👍👍
@najeebullah-yw3hv
@najeebullah-yw3hv 4 жыл бұрын
Can we make this wit H331 transistor
@TechStudyCell
@TechStudyCell 4 жыл бұрын
You can use any Bjt npn transistor
@kychemclass5850
@kychemclass5850 Жыл бұрын
Another really good video. Tq. !!
@TechStudyCell
@TechStudyCell Жыл бұрын
Welcome
@mouadh8046
@mouadh8046 4 жыл бұрын
where we can find bc547 ??
@TechStudyCell
@TechStudyCell 4 жыл бұрын
You can find BC547 from any local electronics shop, Amazon etc. Or you can use any NPN Transistors instead BC547
@mouadh8046
@mouadh8046 4 жыл бұрын
@@TechStudyCell tnx bro .. Can you give me an alternative because I don't understand in electronics .. Something I can find inside home appliances
@adamadness2283
@adamadness2283 2 жыл бұрын
I made it easy and it have and gate in only 2 transiter
@krskrs8299
@krskrs8299 3 жыл бұрын
Please place circuit diagram for talking toys
@uxmuu204
@uxmuu204 4 жыл бұрын
I made about same with 1 WIRE
@rrp3677
@rrp3677 2 жыл бұрын
Good...
@MuhammadAsif-rv6br
@MuhammadAsif-rv6br 3 жыл бұрын
Thanks
@TechStudyCell
@TechStudyCell 3 жыл бұрын
Welcome
@badralbatochir2786
@badralbatochir2786 6 жыл бұрын
use ldr
@miansalahuddin5720
@miansalahuddin5720 5 жыл бұрын
if you like to explain ............. why you are two transistors BC 547 ??????
@TechStudyCell
@TechStudyCell 5 жыл бұрын
For better amplification of input signal. you can use one instead.
@JorgeRamirez-kv4jx
@JorgeRamirez-kv4jx 6 жыл бұрын
Send signal
@Chota.elvish_.shailendra.
@Chota.elvish_.shailendra. 5 жыл бұрын
Ye Modl jesa Modl mera tha lekin mere sath beimani hui
@nagarajunagaraju-ut5in
@nagarajunagaraju-ut5in 5 жыл бұрын
Circuit
@Anu999_AH
@Anu999_AH Ай бұрын
Can it be done on full breadboard?
@TechStudyCell
@TechStudyCell Ай бұрын
yes
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