Time Delay Relay circuit using 555 timer IC | Off delay timer Switch | UTSOURCE
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- เผยแพร่เมื่อ 10 ธ.ค. 2021
- 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
easyelectronicsproject.com/mi...
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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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Thanks For Watching...
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Website: easyelectronicsproject.com/
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Your PCB idea is great wow
thank you man , it's working well.
I tested it and it's have a good accuracy as a kitchen timer ( ± 1.5% )
Very nice is there a way to use a vibration sensor module sw 420 to trigger the alarm. For car purposes
Sir, beautifully narrated... \\thanks for the video... Take Care....
50 years old technology is still valid!
Like your videos!
Thank you
شرح رائع - شكرا
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
Thanks, Your Video Is So Helpful for Me
Wow thank you sooo sooo much!!!
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?
Good day. Your videos are suggested after our videos. We don't know why, but we send you nice greetings from Berlin.
This project is very good!
Thanks
Thank you
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
I have a question , after 20 minutes does the circuit Re-power on for 20 minutes automatically or no ?
Nice and easy mate
Superb video and very practical. Just what I need. Thank you.
Glad it helped
.If the switch is directly connected to the cable, are there any burnt components?
very help full thank you so much
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
Thanks for the video
1m ke badle mi konsa preset laga sakte hai
Kia ye dobara automatic on hota ha ka nahi plzz answer me
If the switch is directly connected to the cable, are there any burnt components?
Any solution if IC 555 heats up by holding down the switch???
Plz ans sir..❤
Very Nice 👍👍
is there any possibility to use a Opto-coupler to trigger the countdown
yes
Possible without relay to turn off after x amount of time?
I think I will make it for our college project❤❤
Great 👍
Sir aap ne ye nahi bataya capacitor kitne volt ka lagya hai
Nice !!
What volt is the capacitor
Hy sir
Sab saman ki cost kit ayegi aur iske bare me kuch batayi a na sir
Sir delay on ka circuit chahiye
120 v DC connection hai hai ose 3 second delay on karna hai
Pls help
Hello sir may i know how to set to 3 minutes? And can i change the 12vdc to usb ?
Sir super video
Sir aap muze batayen ge thumbnail me circuit diagram konte software se banate ho
Photoshop
Finally it worked after trail and error
I can use 12v, not 220 ?
Fantastic, please explain its working in detail now
Thanks.. Will explain in the article
Hello guy. Could you please share the schematic? It is such an useful circuit.
Thanks
4:18 ?
I wanna run this on loop ,Like i want relay to be actuated every 20 mins how can i do it please suggest
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?
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
Great ♥
Wo sircket diagram ka koi link bhejo please
Hi, can you make 0.25 second? / 1/4 second
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
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
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)
CAN I PURCHASE TIMER (1 SECOND TO 1 MINUTE) THIS TIMER FROM YOU.
Thank u very much.....
Welcome
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
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)
PCB design kis software pe Kiya he sir
Altium or easyeda
Hi
The timer will not work until the key is turned off🙁
What about delay on?
What resistance is needed for 0 to 3 sec exact ?? THE START IS WITH A FOTOCEL 0V TO 30 VDC
refer to the datasheet
Why there is a 1.1 in that formula
Thanx
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
i need diagram circuit please
I did the assembly and it doesn't work any suggestions
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
Nice... 👍👍
Thanks
what happens when we use it for 220 v or 16 amp???
use appropriate relay
👍
Im building a flashlight. I need a circuit with one momentary button press delay 5sec on, then delay 10sec off. 1.5 to 3vdc
why delay on
3V ???? ARE YOU SURE? Why so low whatis the light sorce/emitter
@@kennmossman8701 im trying to make a tactical flashlight for my shot gun. It's easy to source 1.5 to 3v batteries. The push button needs to be momentary because it needs to be a "shake awake" and keeps getting activated as it's being used or carried but needs to sleep when inactive. It will help at the tactical range. I'm printing the body when I get my circuitry handeled. I haven't gone to electrical circuitry class for 15years, but recently just aquired soldering equipment and components... just getting back into things. I made a delay start and a delay off both with a 555, but I'm trying to make one that does both with just one 555 timer.
@@kennmossman8701 i got a few cheap Lithium battery packs and they are 3.7v...could use those too
@@kennmossman8701 im using a 9v battery now bit want to drop that for less voltage
Can't we use a POT for variable timings?
th-cam.com/video/VWKbQE5k89Y/w-d-xo.html
yes though I would put a resistor in series
If I want to control 12-volt motor; possible or not?
yes
Exactly this is the circuit what I requested you in Water Controller video. Now please guide how to incorporate this circuit on Water Controller where if water source in negative than delay timer should wait to shut the motor otherwise in water continuation case motor will continue to run.
Okay. Noted..
@@TechStudyCell
Eagerly waiting for your suggestion as I am going to make 2 circuits.
Can I use it with 24V DC Source?
no
What resistance is needed for 15m?
check the datasheet. I think the formula is t = 1.1 x R x C
but there is a limit .......large caps have leakage so the resistor has to supply current exceeding the leakage
@kennmossman8701 thank you for that!!!
Good
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
Sir please tell how many maximum current i passing through the circuit
Please tell 😅
depends on the relay
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
normal people watching this video:☺😯🤖
a guy named Abdul watching this video:💀👳♂👹
The light bulb works, but when the time comes it doesn't cut off and the bulb turns off. What is the cause?
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
pcb. man u r genius. iam gonna try this
Great video. I am going to make one for a project I am working on. Question. How could I add capacitive touch to replace the push button switch. If you do freelance consulting I am happy to pay you for your time to send me the circuit.
yes but depends on the specs of the capacitive touch switch module. There are different types so be sure to get the one that meets your requirements
@@kennmossman8701 hello sir, need ur guidance overhere.
I made this same circuit only issue is when I connect and disconnect power to circuit the relay triggers automatically sometimes.
What the issue please help
@@omshivtiwari NEVER trust YT videos! ALWAYS READ THE DATASHEET!! Ti recommends a bypass cap and.....10 Layout
10.1 Layout Guidelines
Standard PCB rules apply to routing the LM555. The 0.1-µF capacitor in parallel with a 1-µF electrolytic capacitor
should be as close as possible to the LM555. The capacitor used for the time delay should also be placed as
close .....
@@kennmossman8701 thank you sir
@@kennmossman8701 Hello sir...I want to implememnt timer 555 ic to create a delay circuit which when trigger is high after delay of 5 secnds turns on the bulb. I implmented by using this videoth-cam.com/video/Cv08V8liAOs/w-d-xo.htmlsi=ElvheTS1IoSZXJyL. But its not working. Could it be due to a faulty timer 555?
I can't open the pcb layout how can I open
Link is in description. A zip file will be downloaded.
How does will it work if we replace push button with a polarity reversing switch??
*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
Anna pls components description lo echaav kadhaa vatiki voltage rating pettava pls anna pls
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!
How much resistence use in 250 m(sec)
refer to the datasheet
It's possible to off in 5hours what resistor want to change
no
is that posible without button to push
LIke power on Delay
hi
Sir what resistance for 5-6sec ?
Nice video
refer to the datasheet
Without switch this circuit plz
Thinks
Welcome
Can I set 3h
no
can we control 1hp .750 watt water pump using this
Yes you can control with T really
#qudratofficial7788
#@qudratofficial7788
depends on the relay
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
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
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?
What if i want to make it 12 hours?
no
Hi. I need about 2-3 sec delay time. How can i calculate-change components please??? On 12 volts…
Thank you
refer to the datasheet