Fan speed controller - add temperature sensing to any fan

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A handy little device to set fan speed based on temperature or a fixed RPM. Good for devices where the fan just runs constantly at full speed, or when you want to add a fan to something but keep the noise down as much as possible.
🔗 Fan speed controller: s.click.aliexpress.com/e/_Dex...
🎞
0:00 Intro
3:15 Where to stick it?
4:22 How does it work?
8:04 Setting temperature profiles
12:39 Installation
20:19 Results
22:51 Final thoughts
🎞
Thanks for watching!

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Опубликовано:

26 июл 2024

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Комментарии : 23

@granpawa Год назад

I can't beleive you just made another great video that will help me solve the exact same problem you had with your bench power supply. My small Rideng I built 5 years ago is getting on my nerves with it's screaming fan. Problem will soon be solved thanks to you. Cheers !

@MoreFunMakingIt Год назад

Lovely stuff Mark! I'd noticed that fan kicking into screamo mode in previous episodes. Great fix.

@willyarma_uk Год назад

Absolutely brilliant! thanks for showing me this, I didn't know anything like this was available. I couldn't find this one locally but I did find one with the exact same LEDs and setup procedure on Amazon, but its 12V only and has a 4 pin PWM output. It sorted my noisy CCTV DVR! :)

@Colin_Ames Год назад

“I like tinkering with shit”. Excellent philosophy! This was a useful video. I wasn’t aware of the existence of these cheap fan controllers, but now I am. I wonder if it would be worth installing one in an Original XBox, to bypass the existing fan speed control.

@TheRetroChannel Год назад

Could be worth it on an unmodified Xbox. But I think most softmods allow fine tuning of the fan speed

@digitalarchaeologist5102 Год назад

I genuinely choked on my beer laughing when you said, "and you know, I like tinkering with shit...". Good call :-)

@Epictronics1 Год назад

looks neat. I may try one out

@aakashrajput6309 Год назад

Really good to way to explain, and respect from Pakistan...

@fu1r4 Год назад

Some fan controllers always start with 12 volt to get the fan to spin up and then they lower the voltage and the fan will spin even if the voltage is very low. Because you connected the power before the fan we will not know if this fan controller work like that.

@TRONMAGNUM2099 Год назад

Nice video could be useful in several retro computer applications. I'm thinking I could use it in a coco 2. Did you try hooking up your scope to look at the outputs? Is it just a buck converter or does it work like a PWM, so it can raise and lower the duty cycle to make the fan run faster and slower?

@TheRetroChannel Год назад

I did check the output on the scope after filming. Although they call it a PWM controller, it's just adjusting the voltage

@DanielMReck Год назад

This is a great solution -- already giving me ideas to implement in my lab. What did you do with the 2 watt, 150 ohm resistor that was previously regulating the fan when the supply was set to less than 1 amp?

@TheRetroChannel Год назад

I just left it there. With the fan now getting power from elsewhere, there's no current flowing through that resistor

@user-zc8sd8jx8s 25 дней назад

can't get the damn thing to stop when the temp is below the lower threshold. it's spinning at its min rpm even if I set that threshold to the highest value.

@lorenzo.c Год назад

Very nice project! 3-pin fans, like the ones used for cooling PCs, do not have a speed control input: the 3rd pin on the connector is for sensing the rotation speed (commonly 2 pulses/revolution). The connector on the controller seems to be just like the one you would find on a PC motherboard but if you plug a PC case/CPU fan into this controller you would get the electronics in the fan shorting the 3-pin to ground every revolution. Can you check if the controller is simply pulling up the 3rd pin to the supply voltage of the microcontroller?

@TheRetroChannel Год назад

Just checked. The 3rd pin is floating, on closer inspection I can see it connects back to an unpopulated pad labelled C next to the power input. So I guess it's just there as a passthrough option for speed sensing

@beatsbyjocka4012 23 дня назад

can this work for laptop fans as well?

@CollinBaillie Год назад

Hola, are you in Canberra?

@TheRetroChannel Год назад

I am

@CollinBaillie Год назад

@@TheRetroChannel Sweet. I have a mate in Canberra. Just shipped a C64 to him. I've said he should contact you when it gets there. If you're up for that.. It has a couple of tiny issues.

@TheRetroChannel Год назад

Yeah, happy to answer any questions if he gets stuck