[Shop-talk] attic fan switches (does this exist?)

[John Innis]

Yep lots of ways to do this.  If you want it really user-friendly (but
maybe not 100% reliable) go insteon.  Get the smart hub a temps sensor a
relay module and a wireless remote.  Set up a custom program to turn on the
fan at a pre-set temperature.  Then set up a manual program to turn the fan
on/off with the wireless remote.  Then spend the next several years not
being able to find the remote when you need it.
Personally, I would do this using an Arduino, a wireless remote module and
a temp sensor.  Even if you have never worked with this stuff, it is pretty
easy to learn.  It requires some wiring and some coding, but there are
plenty of tutorials online to get you started.  My favorite site for this
is adafruit.com
I would get something like this https://www.adafruit.com/product/393 for a
temp sensor.  And use a tutorial like this guide (the arduino part) to read
temperature:  https://learn.adafruit.com/dht then get something like this
https://www.amazon.com/INKBIRD-Solid-State-SSR-40DA-24-380V/dp/B00HV974KC/ref=sr_1_3?dchild=1&keywords=solid+state+relay&qid=1596113629&sr=8-3
for a relay to control the fan and something like this:
https://www.adafruit.com/product/1096 for a wireless remote.

If you prefer python to C then look at the CircuitPython stuff on
adafruit's web site.

On Thu, Jul 30, 2020 at 7:34 AM <eric at megageek.com> wrote:

> I have an attic fan that is on a thermostatic switch.
>
> I was wondering if there was a way that I can have it on a  thermostatic
> switch AND a remote switch (like X-10)
>
> What happens is that  I want to turn on the fan on some nights or days,
> but it isn't hot enough to trigger it to go off.  If I reduce the
> temperature setting, it stays on most on the time.
>
> But I do want it to go on if it gets too hot when I'm not home.
>
> Is there anything like this on the market?  I also couldn't figure out how
> to wire 2 separate switches safely to accomplish this.
>
> Any ideas?
>
> Thanks.
>
> Mule
>
> "Be as beneficent as the sun or the sea, but if your rights as a rational
> being are trenched on, die on the first inch of your territory." Ralph
> Waldo Emerson
> -Who is John Galt?_______________________________________________
>
> Shop-talk at autox.team.net
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.96
> Archive: http://www.team.net/pipermail/shop-talk
> http://autox.team.net/archive
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/shop-talk/jdinnis@gmail.com
>
>

-- 
=================================
= Never offend people with style when you   =
= can offend with substance --- Sam Brown  =
=================================
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/shop-talk/attachments/20200730/9e8efda8/attachment-0001.htm>