Hi Everyone, So I am working on my first Arduino project and I am having a bit of an issue getting the solenoid to push and then pull. I followed this tutorial: Controlling a Solenoid with an Arduino - Tutorial Australia (core-electronics.com.au) to the best of my knowledge but does not have the …

Does the solenoid have a spring to return it to its rest position when power is removed?

Looks like you have the transistor wired wrong, which transistor? Also, from the Amazon page: Question: how many amps does it need? Answer: The coil windings run about 7.3 ohms, so at the stated 4.5v operating voltage they would draw 616mA or 0.616 amps. By Russell Gray on September 27, 2019 …

I have an NPN Transistor. It came with the starter Arduino kit. If it helps, I do have a kit of power transistors. Which one would be optimal? Currently i replaced the NPN Transistor in the circuit with TIP125 and I get the same result. [IMG_1681-min.jpg] [IMG_1681-min.jpg]

So I hooked up my power supply to see if it resolved the issue. It did not sadly. I did some research and I did have my transistor rotated the wrong way. Oddly enough that didn’t change my outcome.

The link you gave is lying. Very common on the internet! Look at the return spring. That ensures the solenoid ONLY OPERATES ONE WAY!!! The look at the back side. Notice there is no part of the armature that extends through the frame. Also a clue that the solenoid is ONE-WAY. I bought 4 solenoids on…

TIP125 is a PNP, use the TIP120 (NPN), connect 5V+ from external supply to solenoid + and diode cathode (end with band), solenoid - and diode anode to TIP120 collector, TIP120 emitter to 5V GND. TIP120 base to 1K resistor, other end of resistor to Arduino output pin, Arduino GND to 5V supply GND. […

I tried that transistor with the associated resistor and it did not work. I think the solenoid i have is incorrect then. I read online in the amazon link more carefully and it states it only allows for one way motion (Which is misleading). Is there any way for me to connect my controller to the sole…

Have you connected the solenoid to a 5 volt supply to see if it actually retracts? Paul What exactly do you want the solenoid to do? Have you removed the spring to see if that lets it do what you want?

I have connected the solenoid to a 5 Volt DC power supply and it did retract. What i would like for the solenoid to do is to retract, what 1 second and then unretract via the controller. Would removing the spring help? I havent done so yet. A bit worried i may tear it apart

Actuating A 5V Push/Pull Solenoid

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sirvonny March 5, 2021, 2:28am 3

Yes. I tried it with a different Solenoid as well. Both had springs on them, however I got the same result.

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Actuating A 5V Push/Pull Solenoid

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