Electronics 12V relay with dual NC NO switches module with high or low trigger

#electronics #components #relay

[Az-hnxi]

who knew such a random video would benefit me. Thank you sir

[charlielima]

Thank you - Just what I needed to clarify this boards normal state

[alanmcrae]

Nice presentation!

I am currently doing a small diy project with both an optocoupled relay and an Arduino Uno. Fortunately I bought both 12v & 5v versions of these relays because I just read that the trigger voltage for these 12v relays is more than the 5v pinout voltage from an Arduino Uno control pin.

But, I have read elsewhere that some versions of this 12v optocoupled relay will trigger as low as 2.5v. It would be great to determine what the actual minimum trigger voltage is for the majority of these devices by direct testing. (For example, many Arduino users might like to trigger these relays from the Arduino's 5v control pins if it is possible.)

[MRM.]

Does this relay need a fly back diode when trying to power a 12V solenoid valve?

[juangago]

With all respects, you should remove the bag from the bottom of the module as it is conductive. These bags are designed for ESD not to isolate circuits :-)

[DIYGuy]

I still don't understand the voltage you're giving. Thats cropped out of the video on the left. Not sure what you're connecting or connected to what

[techloidtech]

My diagram calls for a 12v dual coil DPST relay. I can't find much for dual coil DPST relays, I assume a DPDT will work just as well? Do you have any recommendations?

[Tolderian]

I’ve been running positive to common on my relays. What’s the difference between running common to ground vs positive to common?

[HollywoodFun]

I have the same relay and I'm trying to figure out how to get it to activate the two wire trigger switch on my plasma cutter. When my control board turns on it outputs 12 volts at the spindle connection.. when that happens I would like the relay to close the switch circuit on the plasma trigger. Any advice? Thanks.

[HollywoodFun]

My plasma torch handle has two wires going to it from the machine. The two wires go to the trigger switch which completes the circuit allowing the torch to fire. I have the same red relay that you are using in this video. It looks like I need to connect the two trigger wires to the normally open and the common connection on the relay. The relay will get its power from a breakout board on the CNC machine that the plasma torch will be hooked up to. The board is an MKS DLC 32. It has a spindle output connection which sends 12 volts. It will send the 12 volts only when the torch should fire. So as the machine works the 12-volt signal turns on and off as the torch head moves around the table. I need to use that 12-volt signal to activate the relay. Can you explain in very simple terms wear the 12-volt signal power should be connected to on the relay in order for the normally open and common pins to complete the circuit? Thanks.😮

[tk]

Thia is the best explanation ive seen and ive watched 3/4!! Thanks.

Jjst to confirm i understood it correctly.

Im building a Arduino project that needs to have a 2x 12v rotary LED beacon lights,

the first blue rotary LED needs to be on and when the device is activated the red rotary LED light will switch on and the blue switch off.

My understanding would be that i can;

Using a 1 channel 12v relay;

I will wire the 12v to the input and ground to the Arduino.

Have my 12v beacons wired with the blue to the NC and the red to the NO.

Thenusing the trick for a low power input use the switch from mu Arduino pin to trigger the change?

Thanks

[greggyoung]

I think I have the wrong relay. I have a 12v trigger 150ma that I wanted to use to open/close the relay and a 5v power source. I think I missed that device needs a 12v power source, is that correct? I probably wanted to a 5v relay and use the 12v trigger the relay? Is that correct?

[coltonwood]

Thanks! If I have a 1.3V signal, will this module work?

[Aileron]

Could you clarify what you mean by High and low? as in digital electronics, high is 5v and low is 0v, Does this relay require 12v to trigger? or is it powered by 12v and then we can trigger it with a 5v High output from our controller?

[bsg-protect]

hi. really nice video, can i use motion detector and siren to activate the siren sound when the motion detector is triggered? i will really appreciate your help. Thank you in advance

[markphillips]

I am driving the relay with a 12 v battery. I can get the Red Ready light, and using the (-) com rail to for the INT.

The relay goes green light, and can hear and feel the relay activating, but I get nothing(voltage out) on the NO, NC, COM via a voltmeter. Any suggestion?

[thomashero]

I’m looking for a two channel 12 volt relay, I want to be able to switch on a 12 volt load and 36 volt load at the same time, looked on Amazon but don’t see any that triggers with 12 volt, none specify it anyway. Can I use 12 volts to trigger a relay if it only requires 5 volt trigger?

[julieandreassen]

Can you give this relay 24V and then make the output voltage bed 12V?

[Berghiker]

Can I use the same battery for both outputs on the relay for 2 different circuits? I did this but the relay keeps clicking. It can't stay on.

[Will_Bain]

Thanks for the very helpful video. I have a question: Would it work okay to hook up 12V that already switches on & off -- e.g. the power from a car "cigarette lighter" socket that's only powered when the car is on -- to both the DC+ and IN pins, to make this relay work like an old school, 4-pin relay? Or does the 12V DC+ have to be constantly powered, with only the input pin switching on & off?