I need a switch/relay or other device to convert a momentary 12v trigger source so it completes a separate non powered circuit.

1) I have a universal 12v wireless RF remote. When you push the button, it sends out momentary 12v.

2) I then have a 12V Bistable Latching Relay Module that needs to be triggered. The relay requires a completed circuit to be triggered on and off. I attached a picture showing this relay.

3) As you can see in the picture, the latching relay requires a completed circuit for it to be triggered on and off. What device would I need to complete this circuit and trigger the relay on and off by using a 12v momentary trigger?

Thank you for all your help!

 

Sorry, I tried editing the post but it wont let me. I just checked the voltage coming from one of the switched leads from the latching relay. Its 5 volts! So.... I have a latching relay that requires a 5v trigger signal to be completed. (not for sure on the amps). Problem is, my wireless remote module outputs 12v. I guess I could put a resistor in to reduce from 12v to 5v. But what about the amps? Could the 12v reduced to 5v still have too many amps and burn up the latching relay? Thank you!

 

I dont understand you completely.
Relay is rated for 5V? Then you need 5V source and the switch in series with the red wire.

 

The latching relay uses 12v to power the board, outputs 12v to the device, but the trigger is a completed 5v circuit. My trigger signal is 12v. Picture attached showing the 12v trigger. This isn't the exact model I have, but same concept. I need some type of relay or I need to reduce the 12v trigger signal to 5v, but what about amps? Thank you!

 

I am still scratching my head. With your drawing the relay will be forever on.
The "switch" is the remote?

 

Perhaps we should start over. Start with telling us what the goal is. Then tell us how you want to control this.

From what I think I can make of your drawing and desire your remote should be able to handle all you want to do. Remotely switching something on and off. The remote you show has the ability to function on 12 to 72 volts DC input. Whatever input you have, this case 12 volts - it should handle 30 amps. I'm not seeing a reason for the relay module.

The relay board operates on 12 volts only - as an input.
The relay (the control switch) doesn't have an output it is simply a switch that turns on or off whatever voltage or power level you're running through it, limited by the relay's capability of amperages at given voltages and whether you're switching AC or DC.

Don't mean to sound scolding, I just need to ask - Do you know how a relay works?

[edit] Also give us a model number for the relay board so we can look up its operating parameters. [end edit]

 

Yeah, if I understand you correctly this should work:

 

I understand what both of you are syaing and I appreciate it. But, you guys only looked at the pics (which I said the model is similar, because I just googled wireless remote diagram and stole a Pic from google), but you didn't read the very first part of the post. The wireless trigger is "momentary". There is no "on or off". The module only sends 12v out if you hold down the button. Once you let off, 12v dies. So I am using a latching relay, the relay board shown in the middle of the Pic, to convert a triggered 12 v to always stay on. Then when I click the wireless button again, it sends a 12v signal to the latching relay and turns it off. The issue is, the latching relay board uses a 5v trigger. I want to convert the output 12v momentary from the wireless module to the trigger source of the 5v latching relay module. I'm sorry for the confusion, I should have stressed the wireless module is momentary.

And you are going to ask my why I dont just buy a wireless on/off module. Well, I wasn't trying to go into a lot of detail and cause more confusion, but I did anyways. The answer, the wireless module I am using is from a overhead industrial crane. It's a 10 button wireless remote. None of the buttons are on/off. They only work if u hold the buttons down. So I want to convert them into a on/off by using a latching relays on specifics buttons. Again, I really appreciate ur time!

 

 

There are step-down modules, very similar to the relay module, you can input the 12V into the module and you can set the output to 5V:

Just google step-down module and you will find something... that can be bought/shipped to your country. Dont use resistors to lower the voltage.

 

Okay, thank you! I'm glad you said that because I would have used resistors! Sry again for the confusion! But thank you!

 

If what you want to turn on/off is also 12V you can use the same supply (orange/blue wires).

 

Thats what I will do! Thank you again! Already ordered with Amazon, will be here this afternoon!

 

That pendant (crane control) has a lot of buttons. How many are you going to use? WHY are you going to use such a large pendant? Why did you show us a remote with key fob? When a lion hunts a zebra it selects ONE target and chases it. If he tries to catch them all he will catch nothing.

We still don't know your secret goal. I'm certain there are far better ways to accomplish it - if we only knew it. By the time you get this thing working you will have spent as much if not more than if you just start over. Start with a remote and fob that has the feature(s) you want. Problem solved. At least I think it's solved. I still don't know what we're solving for.

 

Two threads seemingly both are related to the same problem you're attempting to solve.
https://forum.allaboutcircuits.com/...f-signal-to-constant-12v.206112/#post-1976030
And in both threads there is no clear statement of goal. "I want to turn a motor on and off via remote." would be a good explanation. We'd ask "How much power and what voltage is the motor?" Once we know the details we can offer a solution.

As it stands it doesn't seem like you want a solution as much as you want to be heard. We hear you. Now you need to tell us what you want. Clearly.

 

Here's a latching relay:
https://www.amazon.com/Flip-Flop-Module-Bistable-Self-Locking-Double/dp/B0BQ2XF6JG/ref=sr_1_5

This one looks exactly like the one you have:
https://www.amazon.com/HiLetgo-Single-Bistable-Self-Locking-Module/dp/B01HHM5M4M/ref=sr_1_6

This one is a set - reset unit with two SPST switches. One is open when the other is closed.
https://www.amazon.com/DPST-1NO-Power-Relay-Module/dp/B09T74QYW2/ref=sr_1_13_sspa

This one seems to have all the functions you want.
https://www.amazon.com/QIACHIP-Universal-Wireless-Transmitter-Transmitters/dp/B07D7WSCGL/ref=sr_1_15

Until we know more about your goal - I'm going to stand by and wait for input.

 

If that doesn't solve your problem - I don't' know what will.

 

Tony, actually Meth answered it. As soon he said step down DC module, I went on Amazon and then read the reviews and watched some videos and exactly what I needed. So to answer your questions. The reason I used the other picture of the remote was because I just googled "wireless remote diagram". I should have blacked out the "on and off" and put momentary. Yes, I could have posted the original remote, but I knew that would complicate things from the beginning because there is so much to it. But, you are asking these questions anyways. So, here is your answer. I bought this 10 button remote for my construction dump trailer. Buttons (1)(2)Up/down momentarily control the dump. (3)(4)In/out momentarily control the winch line. (5)(6)(7)(8) buttons are where I need them to be latched to have constant 12v. They control the axle brakes, 270 degree reverse lights, overhead cargo lights, and construction strobe lights on the trailer. I'm using diodes so I don't have any issues back feeding. Buttons (9)(10) will be saved for future use. And to explain more, this is a brand new 2024 Load Trail triple axle 24k 20' dump trailer. It only comes with a hard wire remote. I will remove the factory (2) button remote and install the (10) button wireless module. Also, I bought an (8) button wired crane remote and will hard wire it also. In case batteries die, it breaks, it's lost, there is a hard wire remote for backup. I am using 10 way relay fuse box, so everything will be triggering the relays to carry the heavy load. Also, everything else, I am using a 12 way fuse panel. From there, everything is using crimp connectors then heat shrinked. Everything will be installed into a plastic weatherproof enclosure box which then will be placed inside the steel equipment box next to the batteries and hydraulic pump. I pretty much have almost all the wiring done, mostly installed, just ran into the issue with the latching relays. Hope this helps better understand what I'm doing. Thank you again for your help!

 

Before wasting money on stupid modules that we see no data as to how to utilize them, understand that reducing the 12 volts from the remote to five volts to trigger the relay module can be done with two resistors wired as a voltage divider.
ANY SUPPLIER that does not provide adequate information is unworthy of any attention or business. That includes all of the links I have seen in the past few months.

 

You don't need a step down to 5V, you don’t need a latching relay board.

All you need is a 12V DPDT relay.

Connect one pole the relay as follows:

12V pulsed signal to NC contact
12V supply to the NO contact
Ground to the COM contact

You now have a latching relay. On power up, it is off. The 12V remote signal turns it on and once it is on, NO contact keeps it on. If you need a reset button, connect a normally closed push button between the 12V supply and the NO contact. Otherwise it will reset only when power is removed.

Use the other pole as your relay switch.