Time Delay Relay circuit using 555 timer IC | Off delay timer Switch | UTSOURCE
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- Опубликовано: 28 сен 2024
- In this 555 timer project, I have shown how to make a time delay relay circuit using 555 timer IC to automatically turn Off the switch after a predefined delay. You can also adjust the off delay time up to 20 minutes.
Download the PCB Layout for this 555 timer delay circuit from the following article
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Required Components for the 555 timer project
1) 555 Timer IC
2) BC547 Transistor
3) 1000uF 16V Capacitor
4) 1k 0.25watt Resistors - 2 no
5) 10k 0.25watt Resistor
6) 1M Trimmer
7) LED 5mm - 1no
8) 1N4007 Diode
9) 12V SPDT Relay
10) Pushbutton
11) Connectors & IC Base
12) Acrylic sheet
I have made the complete time delay switch circuit on a homemade PCB.
I have used the 12V DC adaptor to supply the circuit. Please take proper safety precautions while working on 110V or 220V AC.
You can also adjust the delay time of the light switch from the 10 mega-ohm trimmer or POT.
If you want to use a 5V DC supply, then just use a 5V relay instead of the 12V relay. No other changes are required.
After watching the video, you can easily design this Delay Timer switch circuit for your home.
If you face any issues please let me know in the comment section.
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WARNING:
This video is for demonstration and educational purposes only.
Each demonstration presents risks and hazards that must be fully understood before attempting.
And should be performed only by professionals
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#555timer
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Your PCB idea is great wow
50 years old technology is still valid!
Like your videos!
Thank you
@@TechStudyCell 1. will this circuit keep the load/tap On, when IR sensor goes ON off momentarily while hand wash is continue in sink ? 2. as I want only 3- 6 sec off time delay , should I use 10k or 100k preset vri resistor ?
@@TechStudyCell Can ne555 timer relay module be used for OFF delay also > for both activating the load and hold/maintain its ON position up to specified time (0-10 sec) ? in a IR sensor +ve output circuit ? triggering on off again and again by IR sensor output ?
as I am annoyed by the on off flickering Output of IR sensor relay circuit and its sound while using it as automatic sink/basin hand wash process, as hands sometimes goes away from IR leds.
thank you man , it's working well.
I tested it and it's have a good accuracy as a kitchen timer ( ± 1.5% )
Sir, beautifully narrated... \\thanks for the video... Take Care....
I think I will make it for our college project❤❤
Great 👍
This project is very good!
Thanks
Nice and easy mate
Whats point in uploading video if you dont explain it😑
scam
you have component lists, schematic diagrams, clearly written video title with clear pictured video thumbnail etc , what more do u need to understand. omg. what a people on earth.
I suppose you want him to build it for you too!
is it possible to switch off regardless of the time the pushbutton is pressed (in case I had a coil instead of bulb so that no matter how long the pushbutton is activated the coil will disconnect after say 1sec to avoid damage)
Thanks, Your Video Is So Helpful for Me
Finally it worked after trail and error
Superb video and very practical. Just what I need. Thank you.
Glad it helped
What should I do to reduce the delay time from 15 milliseconds to 1 minute with a variable resistor??
Yes, you can calculate this using 555 equation: Delay time=(1.1×R2 in ohm)×(capacitor value in F)
Very Nice 👍👍
is there any possibility to use a Opto-coupler to trigger the countdown
yes
What would happen if I keep pressing the button or press it once again before the delay time turns off ?
very help full thank you so much
If the switch is directly connected to the cable, are there any burnt components?
Is there limit in time or i can change time by changing values of resistor so is there limit ,,, lets say i need 5 minute what should i do
Thanks
.If the switch is directly connected to the cable, are there any burnt components?
Hello guy. Could you please share the schematic? It is such an useful circuit.
Thanks
4:18 ?
Any solution if IC 555 heats up by holding down the switch???
Plz ans sir..❤
Add a heatsink?
Great bro...👍🏻
Why there is a 1.1 in that formula
Bro I watched your videos, its really very osm, easy to learn and make diy projects. Anyway. Can I use this circuit as spot welding controller??
yes but a relay probably would fail since the peak current is extremely high. Plus a relay is less precise in turn-on/turn-off
Sir super video
Sir aap muze batayen ge thumbnail me circuit diagram konte software se banate ho
Photoshop
Sir, what will happen on a time delay circuit if electricity flows back before the delay ends? Do it turns off then immediately turns on or will it continue to be turned on? Please really need a feedback about this scenario.
It stays on for couple of seconds
Can you give me here the elaborated schematic diagram on how to connect each pins specially the relay and ic555
How to reset the timer if the button is pushed again?
Wow thank you sooo sooo much!!!
How to make it automatic?
Circuit which you made is manual, we have to press button to start the circuit.
How to make it automatic? I mean 15 to 20 seconds in normally open and 15 to 20 seconds normally closed relay mode? And it should happen infinitely vice versa!
Thanks for the video
شرح رائع - شكرا
Hello. I made the circuit but the switch is not working. When the voltage source is connected it automatically turned on. How can i fix it?
How to do it without pressing the button. When we energize, the output is ON, at the end of the set time it is OFF.
Hi me too asked the same. they haven't answered yet if you already found the answer let me know plz...
It's the capacitor slowly discharging after being charged up with the button press, it's an extremely basic 555 circuit. Google other NE555 circuits for ideas
प्लीझ स्कीमेटीक सरकीट डायागाॅम बताइए
What volt is the capacitor
I can't open the pcb layout how can I open
Link is in description. A zip file will be downloaded.
The light bulb works, but when the time comes it doesn't cut off and the bulb turns off. What is the cause?
Wo sircket diagram ka koi link bhejo please
Sir delay on ka circuit chahiye
120 v DC connection hai hai ose 3 second delay on karna hai
Pls help
Kia ye dobara automatic on hota ha ka nahi plzz answer me
Tell me please what's happening if you long press the button ,if the circuit diagram will turn off the relay when you still pushing ??
No, it will complete the timer and when u release the button it will turn off
Would this work if the input was 5V? (Assuming a 5V load instead of the relay as well)
read the datasheet 5V is rather low some have had problems at 5V check the CMOS version what current does the load need????
ALSO not thet the 555 output voltage is 1 to 1.5V LOWER than the supply voltage
pcb. man u r genius. iam gonna try this
👍
i need diagram circuit please
Hy sir
Sab saman ki cost kit ayegi aur iske bare me kuch batayi a na sir
Hello sir may i know how to set to 3 minutes? And can i change the 12vdc to usb ?
To set the time to 3 minutes you should put a higher value resistor for the timing. to change the power to 5v you need just a 5v relay. all other components are fine with 5v
I need a delay that if there is applied current, it will turn on the relay after 3 minutes... the opposite on this project... 😁 do you have please?
Google
if the supply voltage to the 555 ic is 5V and the output load also operate at 5V......... Do I still need to place the relay at the 555 output pin and why
I am trying to design external timer circuit to control the on/off of the power supply to the arduino....
Not required as you are using transistor. Please check the collector current limit of transistor
Would it be possible to make this work for 1 hour?
doubtful the current would be too low and fail due to cap leakage - use a decade counter after the 555
круто
Thank u very much.....
Welcome
What about delay on?
CAN I PURCHASE TIMER (1 SECOND TO 1 MINUTE) THIS TIMER FROM YOU.
PCB design kis software pe Kiya he sir
Altium or easyeda
Hi
The timer will not work until the key is turned off🙁
How to make this with out push button so that when power given it should switch on for 30 or more sec (with out pilot signal)
NC relay
I need on timer circuit for automatic water level buzzer siren for 30 sec
When float reach full it will triger to circuit and buzzer need to ON for 30sec AND buzzer need to auto off and after that water drop the limit again again need auto start da above programm sequrence of logic
*Can anyone explain to me what happens if you keep pressing the button during the delay time?*
I Think it resets the timer,and start counting again
normal people watching this video:☺😯🤖
a guy named Abdul watching this video:💀👳♂👹
Thanx
Can I use it with 24V DC Source?
no
How does will it work if we replace push button with a polarity reversing switch??
Is there a off delay timer video for 230v. Basically what i want is when i switch on the light or fan should go on. But when i off the light or fan should turn off after 2 minutes. 230V circuit. Have you made any video like this?
What if i want to make it 12 hours?
no
Without switch this circuit plz
How much resistence use in 250 m(sec)
refer to the datasheet
why 1.1 ?
why not
Maximum how much delay we can get from this circuit and also specify the resistor value for that time delay
If you use 1M POT as R2, the MAX delay will be 20 minute. I have shared the Delay Calculation formula during the video.
refer to the datasheet
Johnson Shirley Lopez Kimberly Young Larry
Capititor 1000uf but how many v? Plz
Thanks
use 1,000,000 caps
Now again with reset button
First like first view
Thanks
Can I get circuit from u circuit made by jcpcb
Please Make Combination Of Rcwl 0516 Microwave Sensor for atleast 10 min On Time @Tech StudyCell
Sir make please adjustable 0 to 20 mint
use a pot with a resistor. refer to the datasheet
Please make automatic college bell using Arduino please fast need please please🙏
Ok. Noted.
@@TechStudyCell please it possible in 5 days?
Wrong circuit
No its not wrong, he only uses a fixed resistor to timed the light(r2=you can use a resistor or you can use a potentiometer/trimmer)
maybe he dont have an available 1m trimmer variable resistor.
My friend learn more about the basics of electronics and you wont worry such thing.
Sir yah circuit Sar chahie please contact number
brother i want delay for 2 hr, which resistor should i use
If I want to control 12-volt motor; possible or not?
yes
I'm watching from Russia.
Well done! Simple and clear!
You can modify it a little and make a similar circuit completely for 220 V.
Then it will be a pulse relay with one-button control!
The author, instead of a mechanical relay, it is much better to use a triac. After all, as a key, a triac is much more reliable than a mechanical relay!
And you can make power for the chip from a low-capacity "quenching capacitor", a bridge, a smoothing capacitor and a Zener diode to the desired voltage.
Try to refine it according to this principle, then I will adopt Your scheme!
And yet, there should always be a standard scheme! Preferably laid out separately or in the video itself, at least for 5-6 seconds. Then it will be considered a full-time job, and this is already professional and high-quality! Then you will want to watch something else on Your channel again!
Sincerely from Russia!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Смотрю из России.
Хорошо сделано! Просто и понятно!
Можно немного доработать и сделать подобную схему полностью на 220 В.
Тогда это будет импульсное реле с управлением от одной кнопки!
Автор, вместо механического реле, намного лучше использовать симистор. Ведь как ключ, симистор намного надёжнее, чем механическое реле!
И можно сделать питание для микросхемы от "гасящего конденсатора" малой ёмкости, моста, сглаживающего конденсатора и диода Зенера на нужное напряжение.
Попробуйте доработать по такому принципу, тогда и я возьму на вооружение Вашу схему!
И ещё, всегда должна быть стандартная схема! Желательно отдельно выложенная или в самом ролике, хотя бы на 5-6 секунд. Тогда это будет считаться полной работой, а это уже профессионально и качественно! Тогда, захочется снова и ещё что-то смотреть на Вашем канале!
С уважением из России!
Bro can you explain what he just did in this whole video, you can explain it in step by step
Very nice is there a way to use a vibration sensor module sw 420 to trigger the alarm. For car purposes
This project is very good!
Thanks
Nice !!
Good day. Your videos are suggested after our videos. We don't know why, but we send you nice greetings from Berlin.
What resistance is needed for 0 to 3 sec exact ?? THE START IS WITH A FOTOCEL 0V TO 30 VDC
refer to the datasheet
Fantastic, please explain its working in detail now
Thanks.. Will explain in the article
Is it possible to achieve about 2 hours delay off with this circuit? If yes, what should I do
Connect resistance in series, then connect to it
no refer to the datasheet
Good
Bro, How to make opposite of it.?
Let's say I need to keep 20 min delay on for 240v and keep it, No auto power off after 20mins (Only one way type) After restart again it should give 10/20mins
Delay start (one way)
if i want to change the switch with an ir sensor moduel which its voltage is going to be supplied by a 5v regualtor what should be presnet to make it work as a switch
Can't we use a POT for variable timings?
ruclips.net/video/VWKbQE5k89Y/видео.html
yes though I would put a resistor in series
I wanna run this on loop ,Like i want relay to be actuated every 20 mins how can i do it please suggest
Anna pls components description lo echaav kadhaa vatiki voltage rating pettava pls anna pls
फिल्टर मे पानी की लीटर केपीसीटी गिनने वाली आई सी किस नंबर की होती है कम से कम 6000लीटर के समय का विडियो बनाने का है क्रपया विडियो बनाओ सर?
I have a question , after 20 minutes does the circuit Re-power on for 20 minutes automatically or no ?
I did the assembly and it doesn't work any suggestions
Hi, can you make 0.25 second? / 1/4 second
Possible without relay to turn off after x amount of time?