Modify time delay relay module so the timer starts automatically, INSTANT ON, delay off auto-start
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- เผยแพร่เมื่อ 14 ธ.ค. 2019
- You can easily modify a relay timer control module to auto-start or self- initialize at Power On. This Instant On feature can be very useful in many applications where you want the timing sequence to start immediately when power is applied. No additional pushbutton switch or operator action is required to start the timer. These off the shelf time delay relays are very economical and reliable. The specific module used in this video operates over a very wide DC voltage range - 5 to 30 VDC. This modification creates an INSTANT ON, TIME DELAYED OFF device. I have tested this circuit modification with both a 5V USB power supply as well as 12VDC battery connected to the V+ and V- and the timer works AUTOMATICALLY as expected.
See comment below from quick _dry who says "even simpler, this will work with just a 2.2uF cap from V- to Trig" .
Here's another video showing you the schematic for a very simple INSTANT on time delay control using a 555 integrated circuit and only 2 to 4 additional components. • 555 Timer Circuit, INS...
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Thank you very much. So simple and useful.
even simpler, this will work with just a 2.2uF cap from V- to Trig
Nice. Thanks for sharing. I'm sure it will help someone.
Yes indeed. It will trigger just once on power up
What uF would a guy need if i am trying to trigger it for say 30 seconds?
Much appreciated. I should have those caps and resistors hanging around. I hardly do any hobby electronics anymore but I'm not dense. If the suppliers of these things, and there are many on Aliexpress, used the term "Trigger" or "Pulse" in the title I would have looked for something else. I want the delay timer starting to count as soon as it receives power from motorcycle circuits and alternately to keep the GPS and USB charger powered if I'm just going to be 5 or 10 minutes from the bike for example - then shut off if I take longer.
I appreciate this video. Much needed!!! Thank you!!
great job !!!
thats what i Need! thanks!
Thank you so much
Love this 2.2UF cap what voltage though?
Sometimes you get lucky, Im using this same module and I have the following problem:
Im using an ESP32 processor in an autonomous vehicle and it seems as the ESP32 do not boot on powerup.
My idea was to powerup and set the reset pin of the ESP32 to low thru the relay.
Now I can.
Just what I needed.
Thx.
AWESOME TIMER! I say this because I have been searching on line for more than two months for this exact type of timed relay, making phone calls and sending emails to manufacturers & sellers and kept hitting a brick wall. I know we aren’t the only people that need something like this so why couldn’t I find it ?,. I’m guessing since you had to alter this device, that such a timer in its original state, doesn’t exist and the only way to achieve this is to make the modification to this one. So, I thank you for figuring this out how to modify this device to operate this way and for making this video and technical information available. I will most likely ruin a few of these before I get it right but that’s par for the course when it comes to electronics and me. If you ever thought about making the modified version available, ready to go out of the box, let me know along with a price, please. I just closed my Aliexpress account out of frustration with the site and the overwhelming issues with bad sellers and won’t be rejoining anytime in the foreseeable future. So, another thank you for allowing us to order the device through the link you provided. Seriously, let me know about the possibility of purchasing a “ready to go” version directly from you lol.
There is another model without the trigger and button. Which simply powers up and timers. I should have bought that. But since I got this model, I'm liking that the only mod reqd is a 2.2cap as mentioned in first comment above
Works PERFECTLY with 10K resistor and 10uf capacitor! THANK YOU VERY MUCH!
super thx!!
YuDaMan thank you for making this video! Just the info I needed.
YuDaMan, thank for sharing. I'm not a electronically experienced guy, so please don't shoot me for dummy question :)
Is it possible to make the module activate a countdown timer by closing the load cirquit?
For example by electrochemical etching/marking of metals would be super to start countdown timer when you touch the workpiece with electrode. With DC etching it's very simple - the voltage range is practically the same, you can use the working load current as power supply but what to do if you make AC marking?
Thanks a lot for sharing this! Just a question: you "short-circuited" the +v and -v with 10k Resistor. Does it means the resistor will keep consuming power? I want to use this delay module for turning on 12v led lamp in bathroom, powered by small 12v battery (the Capasitor on the PCB need to be changed into bigger one to get more delay of approx 8 minutes). My intention is that the module shouldn't consume too much power during standby mode. Appreciate for your feedback!
The fact that there is a resistor there would stop it from being a short circuit
thanks for the video
but what we do if I want the counter start to count when I relase my finger or cut the power?
I mean i want it delay off..
when i press power the light turn on and when I cut power off the light turn off after 5second
Great idea!
I need this solution but in 24 Dc
and i need use directly on input + & - .
What os the best capacitor and resistance for it.
Thanks.
this module works at 24vdc!
Great idea! would it be possible to make the relay stay on less than 3 seconds? let's say 1 second?
Yes.
What will happen when you increase the capacitor size?
can you wire an external switch
I wanted to use this relay with a PIR sensor or the RCWL-0516 sensor but found that the TRIG pin on this relay has a constant 4.70v and unsuitable to hook up to a sensor. I wanted to activate this relay with a sensor so it ran a musical box movement, really pissed.
In diagram v+ and v- connect with resistor but in video you apply v- direct to elco- and v+ connect resistor to elco+ and trig.. Thats make me confuse, can you explain that, thanks
Sorry...i don't recall which is correct. Just try it. It won't hurt anything either way.
Aye aye sir😁👍 i want try trig connect to ir sensor modul with cut off delay, thank for u video
I am looking for a very simple circuit to build yet have found it hard to find. Simply power the circuit on with any voltage from 5-12 volts and nothing happens. Then you push a momentary switch and the relay is triggered for a set amount of time then turns off. All of the delayed timer "on" circuits I have found start the timer immediately when the power is turned on. Can someone help? Again I'm look for something I can build. Thanks!
I'd like to have the relay activate when power is applied (like you showed) AND bypass the timer entirely so it just stays on until power is shut off. What modifications would it take to achieve that?
Jeff, not to be mean or unkind, but what you described is just and on and off switch. I'm sure I'm missing something but on when power applied without timer and off when power shuts off sounds like just on and off switch.
Just short the trigger switch, or forget the board an just use a relay
The resistor is not needed... just a 10 uF between trigger and V- is enough ; )
thanks if it worked as you said, a question in a long use 3 hours is there danger of something?
@@juanalfonso88 The auto start with the 10uF between trigger and V- will work with no issue, even the system is weeks powered.
Expand the time up to 3 hours by modify C2 is maybe possible, but not shure the time will run out.
top eye is correct, 10uF or 2.2uF will both work (connected to v- and trig) when disconnecting-reconnecting power supply (as YuDaMan operates it). This works because the control circuit drains the capacitor (very quickly) when the power supply is disconnected. When power supply is reconnected, the capacitor pulls the voltage down at trigger terminal long enough (in the process of charging to 5v) to activate timer circuit.
Schematic not match the picture. Cap and resistor join at the yellow trigger line and not at gnd.
Please explain the time constant of the power supply. Thanks.
generally no minimum order size on aliexpress. I've never encountered one but it varies by seller.
could you please tell me how can I connect the IR obstacle sensor to start the timer ??
I also find in it...?
There r no any button for start timing cycle.
black rectangular pushbutton marked SW1 just to the right of the trigger solder pad
Same question i want to ask
Can i add outlet on it board?
if you want to control line voltage, you will need a power relay or some other SS power device (like a triac or SCR) to control an outlet.
Plz 🙏 help i want to make this module doesn't stop as long it takes a signal during its working cycle from the trigger
I want to make it working as long it still taking a pulse order
Coco Basha, to do this simply wire a switch between v- and trig. When switch is closed, relay will stay activated until you change switch to open. This is the same as example in this video when YuDaMan holds his finger on the button without releasing it.
Hello I'm a beginner
purchase this timmer module when I press trigger relay ON for 3 sec but after 3sec relay not permanent off its ON OFF ON OFF ON OFF very fast (tick tick tick tick )continuously till a power off (5volt) please tell me what is the problem how can I solve it
I purchase 3 modules all working same
Thanking u in advance
what happens when you use a different potentiometer setting? What is the voltage of your power supply?
@@YuDaMan nothing happen power supply is DC 5 volt
How can i make switch wiring it...??
the module has a pushbutton switch to start the timing cycle. If you want a remote switch, I BELIEVE but not 100% certain, you connect N.O. switch to trigger and V-. You can easily figure it out by figuring out if the onboard switch is NO or NC and then connecting appropriate switch in parallel with the onboard switch.
As an example, every 5 minutes Can we trigger this using this method?
Yes, I'm using this to run a pump ... 90 seconds on and 10 minutes off, then repeat. Be sure to LIKE and SUBSCRIBE. That will really help me. THANKS!