Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 
1756 posts

Uber Geek
+1 received by user: 917


  Reply # 1493417 16-Feb-2016 19:59
Send private message

http://www.aliexpress.com/item/Small-compact-adjustable-thermostat-0-60-degree-temperature-controller-connection-of-fan-or-single-light-for/2025569620.html?spm=2114.40010208.4.117.ny8I70

The ones with a blue dial are for cooling, red for heating.




Location: Dunedin

226 posts

Master Geek
+1 received by user: 15


  Reply # 1493423 16-Feb-2016 20:14
Send private message

An Arduino with temp sensor and relay, use the AVR 12v triggers to switch the project on/off

Simple, set switch on temp and switch off temp and (advanced) if you got clever you could use variable speed to speed up the fans for heavy work and slow them down under low work.

If you google the subject I find umpteen fan control projects that give a start point.


The difference between this stuff and buy off the shelf is fun factor.




Masterpiece Calibration Ltd, isf certified

 

www.mastercal.co.nz

 

 

"I'm not a robot!"

 
 
 
 


226 posts

Master Geek
+1 received by user: 15


  Reply # 1493450 16-Feb-2016 21:56
Send private message


Here is what looks like a good example of a temperature controller project.

http://circuitdigest.com/microcontroller-projects/automatic-temperature-controlled-fan-project




Masterpiece Calibration Ltd, isf certified

 

www.mastercal.co.nz

 

 

"I'm not a robot!"

65 posts

Master Geek
+1 received by user: 20


  Reply # 1493677 17-Feb-2016 09:33
Send private message

Something like this perhaps?

 

 

 




141 posts

Master Geek
+1 received by user: 19


  Reply # 1493678 17-Feb-2016 09:37
Send private message

Hmmmm 

 

So i placed a usb driven pc fan on top of the sky box sucking hot air out and placed a second alongside it pushing cold sir under it. This worked a treat.

 

im trying to look at options for a thermostatic switch but to be honest thats just a fun factor project. 

 

The USB driven fan is connected to the sky box USB port so its self driving and seems to be doing just fine.

 

I even switched off the side fan and the top fan did just as well at sucking through.

 

I did some temperature monitoring in the space where the sky box sits and top temp with everything running full bore in the cupboard was about 38° a temp probe on the sky box recorded 45°..

 

The sky unit was running the hottest - even hotter than the AVR (marantz) but with the fan on top it cruised along at 24°... i call that a success

 

Amazing what you can do when you recycle some old PC stuff and a USB cable you never use anymore. Oh and i attached a couple of little sticky rubber stoppers to the fan before sitting it flat on the sky box.

 

  


BTR

1418 posts

Uber Geek
+1 received by user: 407

Subscriber

  Reply # 1493743 17-Feb-2016 10:25
Send private message

I remember my mate when he was flatting had hit big Onkyo amp cranking with a big set of Cerwin Vega speaker. His amp got so hot it kept turning off so we stuck an electric car fan on top of it connected to a 12v supply and that solved the heat issue.

 

 

 

That might not be quiet enough if you are wanting to use your system at a lower volume though wink


1828 posts

Uber Geek
+1 received by user: 215
Inactive user


  Reply # 1493759 17-Feb-2016 10:50
Send private message

If the cupboard has a ceiling in it you could put a vent in the floor with the fans extracting the heat into the ceiling space whilst cool air is bought up through the floor 


132 posts

Master Geek
+1 received by user: 8


  Reply # 1493792 17-Feb-2016 11:15
Send private message

I just use a laptop cooling pad that has two fans powered by usb. Very quiet and cheap. I do have a vent in the ceiling too.



141 posts

Master Geek
+1 received by user: 19


  Reply # 1494046 17-Feb-2016 14:23
Send private message

So here is what i have ended up with

 

 

 

 

 

 

 


1 | 2 
View this topic in a long page with up to 500 replies per page Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Intel reimagines data centre storage with new 3D NAND SSDs
Posted 16-Feb-2018 15:21


Ground-breaking business programme begins in Hamilton
Posted 16-Feb-2018 10:18


Government to continue search for first Chief Technology Officer
Posted 12-Feb-2018 20:30


Time to take Appleā€™s iPad Pro seriously
Posted 12-Feb-2018 16:54


New Fujifilm X-A5 brings selfie features to mirrorless camera
Posted 9-Feb-2018 09:12


D-Link ANZ expands connected smart home with new HD Wi-Fi cameras
Posted 9-Feb-2018 09:01


Dragon Professional for Mac V6: Near perfect dictation
Posted 9-Feb-2018 08:26


OPPO announces R11s with claims to be the picture perfect smartphone
Posted 2-Feb-2018 13:28


Vocus Communications wins a place on the TaaS panel
Posted 26-Jan-2018 15:16


SwipedOn raises $1 million capital
Posted 26-Jan-2018 15:15


Slingshot offers unlimited gigabit fibre for under a ton
Posted 25-Jan-2018 13:51


Spark doubles down on wireless broadband
Posted 24-Jan-2018 15:44


New Zealand's IT industry in 2018 and beyond
Posted 22-Jan-2018 12:50


Introducing your new workplace headache: Gen Z
Posted 22-Jan-2018 12:45


Jucy set to introduce electric campervan fleet
Posted 22-Jan-2018 12:41



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.