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  • Author Author: sasquatch84
  • Date Created: Date Created
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Aaaaaargh!

sasquatch84

So I got everything hooked up/soldered together and it was all working great.  The relay was clicking on when I wanted it to.  The power supply had everything going without any smoke or flames.  And then I hooked up the solenoid valve to the relay.  It clicked on once and then the relay stopped working.  The light on the Nano is still on and yet the relay light is no longer blinking.  I guess I should see if there is any voltage coming from pin 8 (the one hooked up to the relay. 

The solenoid power was coming directly off of the power supply, not from the Nano.  Should I have put  a diode in there somewhere?  I'm really new to electronics as I am a logger.  image

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  • I would personally run the Nano off a separate dedicated power supply (even a 5v cell phone charger), with the relay board run from that 5v supply too (if it has enough amp rating), and keeping the 12v separate just for the item you are trying to run. (ie, it runs through the screw terminals only, not coming near the circuit board)

    The Nano says it can take VIN of up to 12v, and that might be too close for comfort.

    Also, keeping the 12v separate means you don't have to worry about the load causing feedback to the Arduino.

     

    Or if you just want the one plug, you can get little 12v to 5v modules that might do the trick.

     

    Cheers,

    -Nico "Belt and Suspenders" teWinkel

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  • I would personally run the Nano off a separate dedicated power supply (even a 5v cell phone charger), with the relay board run from that 5v supply too (if it has enough amp rating), and keeping the 12v separate just for the item you are trying to run. (ie, it runs through the screw terminals only, not coming near the circuit board)

    The Nano says it can take VIN of up to 12v, and that might be too close for comfort.

    Also, keeping the 12v separate means you don't have to worry about the load causing feedback to the Arduino.

     

    Or if you just want the one plug, you can get little 12v to 5v modules that might do the trick.

     

    Cheers,

    -Nico "Belt and Suspenders" teWinkel

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