Arduino with Solenoid

[Tungrus]

Originally Posted by Mad Cows

That is what I seem to have heard, but the solenoid says 12/24v on the side, is this just the indicator?

The KOP solenoid with 12/24V works with 24V only. We have tried to operate at 12V, you see the red light activated and feeble click but it did not operate. Last season we were short of one solenoid, so we had to switch to 24V.

[Mad Cows]

Thanks for your help. I do not have time to purchase the power source. Over the last night we realized that we might use the power converter in the 2014 KOP operate the solenoid. Would this work?

[protoserge]

Originally Posted by Mad Cows

Thanks for your help. I do not have time to purchase the power source. Over the last night we realized that we might use the power converter in the 2014 KOP operate the solenoid. Would this work?

24VDC is 24VDC. You can get it with 16 AA or 2 12V drill batteries in series. You only need to make sure the power source can provide the current required by the solenoid.

Here's an example I found. Substitute the 230V with any voltage you need to drive the switched circuit. Note the relays have a maximum current and voltage rating and will work with voltages and currents in that range. Hopefully that helps understand the wiring using a relay. You can Google how to use a transistor as well.

You have also not answered the question whether you have a transistor or relay to trigger the solenoid on the 24V circuit. The shield you identified is for PWM DC motor control using the L298. Are you running it at 100% duty cycle in your code?

[Mad Cows]

I have access to relays, but is it possible to use that power converter?

[RufflesRidge]

Originally Posted by Mad Cows

I have access to relays, but is it possible to use that power converter?

The square silver 12V to 5V converter? No, that will not help.

[Mad Cows]

What if I put it in reverse (5v to 12v)

[protoserge]

Originally Posted by Mad Cows

What if I put it in reverse (5v to 12v)

It's a step-down regulator meant to convert the 12V to 5V, not the other way around.

It sounds like you have everything you need if the relay can be triggered by a 5V source.

Here is an example schematic. Scroll down to the Arduino + 24V on relay.