Wrap the mag switch with a bunch of turns of wire.  External current and the 
switch.

Sent from my iPhone

> On Oct 1, 2019, at 8:43 PM, Ken Hohhof <[email protected]> wrote:
> 
> Something I can’t seem to find in any of this smart home stuff is a monitor 
> for a contact closure.  It would need a cellphone app that can check the 
> status, and receive a push notification if the contact changes state.
>  
> I have a cattle farmer who wants to monitor his well pump that supplies water 
> to the cattle barns.  There is already a switch for what he wants to monitor, 
> he just wants to monitor it remotely and be alerted if a problem occurs.
>  
> There are sensors for doors and windows but they sense the proximity of a 
> magnet, not an external contact closure.
>  
>  
> From: AF <[email protected]> On Behalf Of Josh Luthman
> Sent: Monday, September 30, 2019 10:31 AM
> To: AnimalFarm Microwave Users Group <[email protected]>
> Subject: Re: [AFMUG] OT Remote Control
>  
> If it were me I'd do Shelly.
>  
> You buy a Shelly 1.  Single count is like $15.  There are no additional costs 
> from Shelly.cloud.
>  
> The terminals are input/output (this is what power goes through the relay and 
> gets shut off/on).  Do your 110vac or 12vdc (WATCH THE TERMINAL! It's covered 
> on newer ones with a plastic door) for this.  Wire 110vac to your 
> load/neutral and that powers the device up.
>  
> Once powered, you can use a computer/phone to connect to the factory SSID 
> Shelly-MACMACMAC.  The device is 192.168.33.1 (you get DHCP).  Configure it 
> to connect to your WiFi (the client config).
>  
> Once it gets online you'll want to update the firmware and then what you want 
> to do from there can be through the cloud, Shelly.cloud app for your phone or 
> Google/Alexa voice, OR you can just control it via the relay's web interface 
> or local URL/API structure.
>  
> Josh Luthman
> Office: 937-552-2340
> Direct: 937-552-2343
> 1100 Wayne St
> Suite 1337
> Troy, OH 45373
>  
>  
> On Mon, Sep 30, 2019 at 10:59 AM <[email protected]> wrote:
> Was it a one time app charge or recurring?
> What other servers would be better? 
>  
> I am totally new to iot. 
>  
> I can imagine how I would build it.  Device communicates to a server in the 
> cloud.  Your cell phone also communicates to that same server etc.  You gotta 
> hope the server never goes away.
>  
> Not sure how the iot device gets connected to the local wifi. 
> There must be some way to config it with SSID or something. 
>  
> From: Josh Luthman
> Sent: Monday, September 30, 2019 8:48 AM
> To: AnimalFarm Microwave Users Group
> Subject: Re: [AFMUG] OT Remote Control
>  
> eWeLink has the most broken servers and product, though it's SUPER easy to 
> install, the reliability just isn't worth the convenience.  It never worked 
> when you wanted to use it.
>  
> Josh Luthman
> Office: 937-552-2340
> Direct: 937-552-2343
> 1100 Wayne St
> Suite 1337
> Troy, OH 45373
>  
>  
> On Sun, Sep 29, 2019 at 4:05 PM TJ Trout <[email protected]> wrote:
> eWeLink pcb's work pretty well for smartphone/internet controlled relays, 
> about $10 ea and have a good cloud system
>  
> On Sun, Sep 29, 2019 at 12:49 PM <[email protected]> wrote:
> I tested my system again today with better antennas.  Maybe 2 miles of 
> reliable functionality.  I need 3 miles.  That is a half roll of fiber. 
>  
> I am starting to lean away from radio remote control.  I presume there are 
> some cloud based switches that I could use?  Just drop my cell phone into a 
> box with the hotspot turned on.  A local cloud based relay can then be 
> controlled from another cell phone at the other end? 
>  
> Does any of the unifi stuff provide this functionality?
>  
> From: Lewis Bergman
> Sent: Sunday, September 29, 2019 11:04 AM
> To: AnimalFarm Microwave Users Group
> Subject: Re: [AFMUG] OT Remote Control
>  
> Chances are pushing won't have the coverage you want. I still on a passing 
> system and we used to have hundreds of transmitters. Now we have maybe 10.
>  
> Why don't you get a higher power mobile and file for an itinerant  license? 
> Digital radios normally have some i/o capability built in as well.
>  
> I know they won't be as cheap as the $30  BF junk though. At least some of 
> that gear isn't FCC certified.
>  
> For a guy that likes to roll his own there are a lot of options.
>  
> On Sun, Sep 29, 2019, 10:57 AM Chuck McCown <[email protected]> wrote:
> That would do it. 
>  
> From: Adam Moffett
> Sent: Sunday, September 29, 2019 9:54 AM
> To: [email protected]
> Subject: Re: [AFMUG] OT Remote Control
>  
> They used to make pagers with a relay in them.  Are pagers still a thing?
> 
> On 9/29/2019 11:08 AM, Chuck McCown wrote:
> I built a remote control to turn on the air flow from a 175 PSI 375 CFM 
> compressor so that I don’t have to have someone manning a compressor when 
> blowing sponges through miles of duct.
>  
> Using Baofeng and Retevis VHF murs frequencies with DTMF control.
> Not terribly happy with the range.  It is only reliable for 2-3 miles at 
> most. 
> Going to get some 5/8ths wave mag mount for the vehicle but not sure that is 
> going to help all that much.
>  
> Could try UHF but I doubt it will be much better. 
>  
> Anyone know of a radio switch type of thing that works will cell phones?
>  
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