Configurable Active High or Low Relay Module, with opto-isolated input

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Check out this relay module, with configurable active high or low input (high or low trigger), the input is opto-coupler, isolated. There are standard relay breakout to screw terminal of NC, COM and NO. This is 5V activated relay.

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  1. Cytron Technologies
  2. optocoupler
  3. isolated
  4. relay
  5. 5V
  6. low trigger
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Комментарии
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Thanks! Just picked up a couple of these for my 3d printer :)

megankerr
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I want to use this to turn on a pump for water cooling my PC.

I want to run 5v from the PSU when my PC turns on. I don't need logic control, I just need to turn on the relay when my PC turns on.

I noticed that connecting ground to the signal seems to turn it on when my PC turns on.

Is that okay?

HarryFrancesBean
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hi, when you give a low signal the relay locks and then low signal again the relay unlocks

robertovalinhos
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What I have is an LED controller in the trunk of my car. Battery is also in trunk. Obviously, I do not want power to controller all the time draining battery. I want to use my taillight wire to trigger 12 volts to controller. Taillight is supplying 3.4 volts. Not enough power for controller. I guess, my question is will this Relay work? I purchased it but do not understand how to wire. Maybe I am out of my league?

NicholasHalm
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What about relay board with now jumper...?

SwgwmTJB
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I have a very dumb question, does this need a DC power supply to work? Or Can we just use current triggers to switch?

atharvaburte
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B . Why my relay not working with arduini uno

AredaMohammed
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How to know whether the relay is active low or high?

srteaches
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Problem is there is not flyback diode on the relay coil. Even though signal pin is isolated by opto, the power path appears unprotected.

mechsavvy
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Hey, can I use this relay module without arduino? For example, I have 12v power source, I connect to relay, I connect a switch between +12v and IN, when I press the switch does the relay activate?

popadrian
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I didnt hear click of the relay whats up with that?

crissan