N-Channel MOSFET as a Switch. Turn ON a 12V Motor with Arduino. (Step-By-Step Guide)

This is a tutorial about using an N-Channel Enchantment Type MOSFET as a switch to turn ON and OFF a 12V Motor.

UPDATE:
You should also add a 100-ohm resistor between the Arduino pin and the Gate terminal of the MOSFET. The MOSFET has a small capacitance that starts to charge/discharge when you switch the Arduino pin. This creates a short current spike that can be bad for the Arduino pin. Especially if you plan to do high-frequency switching.

I am using a 30N06L, but you can use some other logic level N-Channel Enchantment Type MOSFET.

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[snillddy]

Thank you sooo much for this huge help
You don't know how much you helped me , it saved my project from ruining
Thanks a lot 👍

[dogeeatsveggies]

ive been googling videos that will give me a simple ang clear explination about this.. until i found your video. im subbing. thanks man

[Wandering_Horse]

3yrs later...Just wanted to say thanks for this. Very concise and to the point. I used a IRL Z44N mosfet and it worked just as you instructed. Using it to control a 12v relay. Thanks!

[mikewalton]

You are a excellent teacher! Thank you for the explanation.

[laurentiujinga]

10k label. that is the coolest thing I've seen :) I will use it...

[Creative_Electronics]

I just saw you're video of the 3D Printed car and then I looked to you're other video's and you're channel is awesome!!! I like it really much!

[gedtoon]

I would use a 470R gate resistor to reduce the inrush current as the MOSFET gate capacitance is charge up.

[Creative_Electronics]

It's a really good explaining!! :)

[AskQuestions-wy]

So why don't we connect a 10k pull down resistor between gate and the arduino instead of two different resitors in two different spots?

[nelxonmiranda]

You’re not exposing anything and plugging in stuff to a breadboard doesn’t explain much.

[hansparam]

Nice information. Will the mosfet drop some voltage at the motor?
i.e instead of 12v it will be getting 10.5 or 11volts.

[ArcanePath]

I cannot get my motor to work at all. I have a fairly strong, slow geared motor which I connect power to the direct, it spins. I have tried 2 different H bridge motor shields and now a IRL540N MOSFET and at most, I hear a PWM whining sound inside the motor, but the motor refuses to work. I am at the end of my tether. It's only a 3.7v 1.2amp motor which ran off A tiny board the size of a postage stamp when I bought it. No caps, no nothing. I'm seriously perturbed by the mystery of it not wanting to work no matter what voltage I through through the Fet.

[puzzlefactorysoundstudios]

Thank you for this great video! Do we need to use a series current-limiting resistor between the gate and the Arduino pin?

[laurarosu]

Hello! Thanks for your video. I am using a 3-6V water pump and a MOSFET IRFZ44E. Everything works as you said, until I connect the Gate to the D5 pin of my ESP32 dev Kit. I put the VDD source on 5V. Nothing happens. Any idea?

[Micington]

Legend! Thank you! Can you do multiple motors simultaneously like this?

[rochdimaria]

Hi, Can i use this circuit to power on one arduino through the vin pin from another arduino gpio ?

[apinuzi]

i really like how you explain things! good videos and really informative! more success to you sir!

[Marcuss]

12V won't fry my ESP32 controller if I connect it to the same ground?

[HanspeterAdam-hmzi]

I'm not clear which pins the flyback diode is connected to. It's not possible to tell from the video. Please explain.

[blmagic]

Any help appreciated please. Brain absolute in bits. mosfets, like reading alien. Total noob. just using a 9v battery. Switches on a solenoid (12v) that many mosfets out there. just needing to know what be suffice. using with arduino. Thanks#