How to Use a DC Cooling Fan with Arduino (Lesson #40)

[@R.P.G.G]

When are you going to do more Arduino tutorials? honestly the best I can find on youtube

[@Science.Buddies]

Thanks! We add more Arduino tutorials as-needed when we write a new project that requires a part we don't already have a tutorial for. So unfortunately we don't have a set schedule for releasing them.

[@DesertVox]

The gate is normally connected through a resistor to ground in order to turn off the mosfet. Otherwise it stays on once turned on by the Arduino pin.

[@Science.Buddies]

Full playlist of Arduino tutorials: kzbin.info/aero/PLlBVuTSjOrclb0iCMSRpS_H1lSrlSVeEm&si=_vq_fZk2H9V2eICG

[@vascuin]

You made everything very clear for a beginner. Thank you for the great video!

[@murtazasyed3392]

I only have a t1p120 transistor would work for 5v fan like this or a motor?

[@drew3931]

I've been working on a group project and we've decided to create a smart temperature controlled fan for a class i'm taking. I was thinking of buying a 4 pin fan instead of 2 pins as I couldn't find one on amazon. Would it be more difficult or are there any major differences? There is a pwm 5v 4 pin fan from noctua that I'm interested in buying that has all the stuff that I need except for the fact that I don't know how to connect a 4 pin fan to the breadboard/arduino. I have gotten the temperature sensor to work and display it on an lcd screen. I've been relying on online tutorials, researching stuff, and a robotics course that I took in high school that introduced me to arduinos like 2 years ago so my knowledge in this area is a bit limited.

[@Science.Buddies]

Hi - unfortunately we don't have our own tutorial on a 4 pin fan. We suggest specifically searching for 4-pin fan tutorials with Arduino or asking in the official Arduino forums.

[@berserkerfury3073]

hey, i also working on something similar

[@VcelakM]

Hi, can i use a L293D (H bridge) to control the fan just like motor in one of you previous video with motors?

[@Arduinoman523]

Yes

[@Science.Buddies]

Please watch to the end of the video and note how the fan does not reverse direction if you reverse the power wires, so it will not work with an H-bridge IF your goal if to reverse the fan's direction. If you connect the fan's positive wire to an H-bridge output and the negative wire to ground, you could still use the H-bridge to control the fan similar to how you use a transistor.

[@berserkerfury3073]

Can i know the difference between 12v dc fan and 5v dc fan in term of fan speed. Is 5v dc fan enough to maintain room temperature in closed system?

[@Science.Buddies]

There isn't really a simple answer to this question - how much air flow you need to maintain constant temperature in an enclosed space depends on the size of the space and what is heating it.

[@Ur_cr77numbr_1]

First

[@Ur_cr77numbr_1]

Pin pls