3 EASY TRANSISTOR PROJECTS
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- เผยแพร่เมื่อ 10 พ.ย. 2018
- 3 Easy Projects using Transistors and some components and Battery.
These are really easy projects that you can do for school project and can be constructed on breadboard and need NO Soldering!.
Circuit and details.
www.instructables.com/id/3-EA...
The list of projects made here are:
LED Blinker using 2 transistor
Automatic Night Light
Water Level Buzzer Indicator
Material List
For LED Blinker Circuit:
BC 547 Transistor
LED
Breadboard
Battery 9V
10uF Capacitor
47 kohm resistor
100 ohm resistor
Wires
For Automatic Night Light:
BC 548 Transistor
Breadboard
Battery 9V
LDR
LED
100 ohm Resistor
4.7 kohm resistor
1 kohm resistor
Wires
For Water Level Indicator:
BC 547 Transistor
Buzzer
LED
Breadboard
Battery
100 ohm resistor
4.7 k ohm resistor
Wires
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On the alternating LEDS, what keeps the capacitors alternating instead of just charging and discharging independently of each other? Thanks
what kinds of wire you used in these projects,i have make circuit using your video for automatic night light,but light is not turning on,when i had put positive and negative wire of 9V battery dirrectly on the positive and negative side of LED,then the led just turn on for seconds,then again led can not turning on,what should i do now?
Which program do you use to sketch the schematics for the projects?
Thank you for this video! I've made the last one and it works!!! Thanks again!!
Which wires did uh usee to keep in waterr... Plz do helppp... Its nt workingg for uss
In last project i.e.water level detector which transistor you used? Please clarify
For the first project can I use a PN2222 or a S8050 transistor?
I tried the automatic night Light but it’s reversed Led is on when there’s light and off when no light
Any suggestion?
In the 3rd will a 270 ohm and a 100 ohm resisitor work
The 3rd one really deserved a thumbs up👍
Love your content bro
Keep on doing what you're doing
2nd project is working only when I place my finger on it .it's not working when I remove my finger and in dark. What might be the problem?
For that first circuit, I’m pretty sure you just invented the 555 timer. Nice!
I hope you are still answering questions but what purpose do the transistors serve? I know they are important but the same kind of happens without the transistors. So what information am I missing? Thank you so much btw
transistors can detect micro voltages, if you did the ater detector without a transitsotr the water ont be able to conduct at least 5 volts to make a buzzer sound.
Thank you for the video. Can I use a bc327 transistor instead for the night light?
BC 327 is PNP transistor. You can use but the logic will be reversed. Instead use any npn Transistor like 337, 547,548, sc100, etc.. you can find those in old radio,TV,lamps,etc
@@TheTechnocrat hi thanks for your reply, I used some 2n3904 transistor I had. Cool project thanks
@@harryvlogs8639 what did u do? Can u help me?
Hi, Your video is quite helpful. I wanted to ask whether I can use 4.7uF Capacitor instead of the one you are using.
Thanks.
U can use any capacitor. Make sure both the capacitor have same capacitance
But different capacitor will change the blinking speed
@@sWooSH_wHooSH Thanks a lot
very helpful
Super! thanks for helping to create my circuits
Hi what if i don’t have the 4.7k ohms resistor, what value of resistor can I use? for the automatic night light? Thanks!
Hi you can use a resistor value similar like 4.5k /5k
Hi, for your project, are you using a 47 kohm resistor or a 4.7 kohm because your description isn't the same as your video
it is 4.7kohm
Thanks for helping me understand breadboard connections!
That's easy bro
good one bro but for students please put circuit diagram with symbols
is that 100 ohm resistor 1 watt or 1/2 watt
can i use any other npn transisitor?
Can you give me idea about from where you buy this project kit
Any link or something like that...
Thanks
It's urgent please suggest me
In the community college I go to, we get a small box called "Adafruit parts pal" and inside this box there is a decent variety of components for similar circuits and more.
@@yddc902 schemobotics.com
can we do the 3rd experiment with using a Darlington transistor like TIP120 ?
Yes it is possible
Can you please give me your email sir ? I have sent you a msj on Instructables but you did not reply. Thank you.
Why I cant make the 2nd circuit happen
Bro for led blinker , everything alright okay but my 2 leds are getting light but not blinking
my set up does the same,did you get yours to work?
I had this problem. From comments down below I stitched together an answer. 1. When he says 47ko resister from positive to the capacitor, he means 4.7ko. The second factor, and how it actually then started working is adding a resistor between the capacitor and the (base / gate) of the transistor (middle terminal). With a High resister like 15k, I get a good consistent blink but it is very slow. With a lower resistor, I get only 1 light staying on. Not sure if I am doing something wrong but I do not yet get how to get a faster blink happening.
yr i am surprised ke bread boad pr bhi yeh ban sakta hai, warna usually ye circuit electric playground pr bante hena... really deserved a sub
In water level indicator if we use buzzer which has two wires so how we can connect it ?
Connect it in the place of LED. Match the supply voltage according to buzzer requirement. Usually 12V
if i don't have 100 ohm resistor what I can used to replace it
Search for resistance near to that value. 100 ohm is easy to find and probably be in any scrap electronic if you can't find new.
The transistor used here is a npn junction transistor right?
Yes
2nd one. Tried and worked out. Thanks
Bro mine is starting on light also help me
Awesome Projects
Thx bro!!! I searched so long for that automatic light when it is dark!! Super video. Thumbs up
How can you make that circuit work? I did that my circuit and the circuit im the video was just the same but mine is not working
very good demo, can you please draw the circuits for these 3 projects?
It’s already there
Good one!!
Will u please explain that automatic night light.
for the first one what is the specification of the LED ?
3volt, 5 mm LED
In the night light project what transistors did you use
BC 548.
i never really understood transistors. thanks for this!
Dude it just acts as a electronic switch.
@@ryzen980 also an amplifier, the current that goes through Base opens a door for a much bigger current from the collector current
Amazing video!
Can we do blinking and night light together
Please make a video about how to make IR burglar alarm...
Cinema Science sure tq
How much volt battery needed in water ditectection project
Helping too much, thanks
Can you explain in simple langauge what is happening in the components when you close the circuit
There are 3 experiments. In which circuit??
@@TheTechnocrat led blinker
for the first one (blinking the LED)
Can you provide Circuit diagrams of the above circuit ?
Ashish Pawar, please refer the link in video description.
Bro do you have circuit diagram
Tnx bro 🙏😍
Please can you draw the circuit Diagram of first project on page or paper????
Circuit diagram is in the video.
Can we connect 2 led for automatic light
Yes
Can someone please help me to draw the diagram of the first circuit?
Hi the first circuit is also Known as astable multi vibrator led blinker circuit
Here the link to the circuit diagram images.app.goo.gl/Wn5ZDdJQuqyFczk98
Simple water level cha output ala hote ka
this is good . but from where will we get the small wires
its available in every electronic shop n latr u can cut the wire as ur convinent
@@kanchanbenal8105 which type of wire is this cat 5 or jumper wires?
@@SaimunAhmed its a normal bread board wire
Can i use jumper wires? Instead of these wires?
@@SaimunAhmed yes. u can
For the LED Blinker Circuit: how to slow the blinking, change the value of capacitor?
Mark Razon you can change the value of capacitor and also resistance connected to collector of TRANSISTOR
@@TheTechnocrat thanks a lot :)
creative!!!
thanks, plz uploading weekly
Vo white board kya hai aur konsa hai?
Wow! Nice
Do we get this stuff in local shops?
Yes. Easily available.
Bro I want automatic night light circuit diagram
this is i was looking for
Can you please give me circuit diagram of the automatic night light
Circuit diagram is there In the video or from the link in the description
I mean to say that the circuit diagram drawn on paper
Sir 2nd project me circuit daigram nahi hai vo please aap de sakte hai kya
Instructable link in the discription
@@TheTechnocrat sir maine description ke link me dekha nahi hai plz help
3rd one experiment which wires we must use to keep in waterr
Can you send me the detail of this project
thanks
At 0:25 i think you have given wrong statement of COLLECTOR, BASE,EMITTER .
I think you have given it in reverse.
I dont see where to place buzzer
Can I get a circuit diagram for this experiment
Please refer the link in description
so exciting
Still in 2021 watching this❤️
Pls can u give circuit diagram
Bhai ye white kya cheez hai
1 led slow progect plzzz
Thanks bor
Circuit diagram upload please
👍👍
What is the price of a LDR?
Around Rs.5. but online prices may vary
From where did u learn all this ??
These are basic electronic circuits. You can find these in internet and books.
Please put your guidance as well.
These projects isn't running please suggest some alternative solutions immediately!
Double check your connection and try replacing transistor
2:31 there is a mistake . it will be E C B
Circuit diagrams
In automatic light which no transistor is used
Bc 547 or 548 or bc 337 any npn transistor
Output nyy re aal ult kelyavr yeyy
Where is the circuit diagram bro
On the link in the video description
First circut was astablemultivibtator
I did every steps and my circuit is just the same
Doesnt working water level indicator
Hi i am senuja bada
Where is the link?
updated. sorry.
Its not workingggg
why the annoying music? What purpose does that serve?
It's not annoying to me
please never use that music again, literally any other song would be better. Other than that, it was a really useful video.
The song is actually good. Very nice selection 😊
I dont have 4.7k ohm.
You can make it by taking two RESISTORS and adding them in SERIES or PARALLEL.
3 "easy" transistor projects. None of them seemed easy to me.
all of them are easy.
@@RegorForgotThey are not easy in my opinion.
They are easy
Plzz doo helppp
2:31 there is a mistake . it will be E C B
Hii
Can you just talk instead of playing this millennial music??
Thanks for advice. Will try to implement in further video.