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 
1903 posts

Uber Geek
+1 received by user: 1051


234 posts

Master Geek
+1 received by user: 21


  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!"

234 posts

Master Geek
+1 received by user: 21


  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!"

73 posts

Master Geek
+1 received by user: 22


  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

1469 posts

Uber Geek
+1 received by user: 431


  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 


134 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 introduces new NUC kits and NUC mini PCs
Posted 16-Aug-2018 11:03


The Warehouse leaps into the AI future with Google
Posted 15-Aug-2018 17:56


Targus set sights on enterprise and consumer growth in New Zealand
Posted 13-Aug-2018 13:47


Huawei to distribute nova 3i in New Zealand
Posted 9-Aug-2018 16:23


Home robot Vector to be available in New Zealand stores
Posted 9-Aug-2018 14:47


Panasonic announces new 2018 OLED TV line up
Posted 7-Aug-2018 16:38


Kordia completes first live 4K TV broadcast
Posted 1-Aug-2018 13:00


Schools get safer and smarter internet with Managed Network Upgrade
Posted 30-Jul-2018 20:01


DNC wants a safer .nz in the coming year
Posted 26-Jul-2018 16:08


Auldhouse becomes an AWS Authorised Training Delivery Partner in New Zealand
Posted 26-Jul-2018 15:55


Rakuten Kobo launches Kobo Clara HD entry level reader
Posted 26-Jul-2018 15:44


Kiwi team reaches semi-finals at the Microsoft Imagine Cup
Posted 26-Jul-2018 15:38


KidsCan App to Help Kiwi Children in Need
Posted 26-Jul-2018 15:32


FUJIFILM announces new high-performance lenses
Posted 24-Jul-2018 14:57


New FUJIFILM XF10 introduces square mode for Instagram sharing
Posted 24-Jul-2018 14:44



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.