Have you considered putting a current transformer on the power feed to
the shop/garage? Something like https://www.sparkfun.com/products/11005
connected to LEDs? (This could work that there are not too many other
loads on the line. This particular current transformer has a 2000:1
ratio, so several turns of the feed would be needed to sense a lamps-on
condition. (e.g. 10A of lamps would require 3 turns feed wire to create
15mA of LED indicator current.)
HTH,
Donald.
On 1/20/23 13:22, Steven Trovato wrote:
> Well, there is some risk with IOT, but I don't think the exposure is
> that great with this situation. What would the hacker do, blink my
> workshop light? Anyway, I am familiar with X-10. What you are doing is
> controlling the light like any timer would, with the added 1 minute
> extra activation. This is still not doing what I asked for, which is to
> notify me if I forgot to turn the light off. BTW, the 1 hour was really
> more of an example than an estimate of shop usage. Just like my garage
> door, I get a warning if the door is open for an hour. Then that
> repeats on an interval until I close it. That doesn't mean I don't
> leave it open all day if I am doing something. It just means my phone
> alerts me periodically that the door is open. It isn't a big deal to
> ignore it in those cases. Actually, as far as hacking IOT goes, the
> garage door is a greater risk than controlling my light. A hacker could
> theoretically open my garage door. I guess one would have to balance
> the risk of that against the likelihood of accidentally leaving the door
> open all night. I'm pretty surprised that in this world of home
> automation, there are lots of ways to control my lights, but there
> doesn't seem to be a way to get a warning if the light is left on.
>
> -Steve
>
> At 11:40 AM 1/20/2023, eric@megageek.com wrote:
>> First, I am not a fan of ANY IOT device, solution, etc. So I don't
>> put anything like that anywhere in my home networks.
>>
>> Next, sometimes old school is best. There are X-10 devices that are
>> way out dated (and hence, no one is trying to hack them, not like they
>> can without accessing your AC current on your side of the
>> transformer. If someone can do that, you have bigger problems.) They
>> can also be bought for pennies.
>>
>> Anyway, there are lots of switches and relays and such to control 120
>> vac.
>>
>> There is also a serial (read- NOT NETWORKABLE) interface. You need an
>> old computer to run it (and it can be a stand alone machine.)
>>
>> You program the interface to activate in anyway you want to or even
>> run marcos. Then the computer can be turned off.
>>
>> What I would do would be you program the main 'X-10' switch that you
>> use when you want to turn on the garage light. The macro would do
>> this...
>> -Turn on light G-1
>> -Wait 60 minutes
>> -Turn off light G-1
>> -Wait 30 seconds
>> -Turn on light G-1
>> -Wait 1 minute
>> -Turn off light G-1
>>
>> The second 'turn on' would be if you were under a car or something.
>> You know your 1 hour is up when the light goes off, you can get up,
>> the light will come back on, you walk over to the switch and press
>> it. This will start the macro all over again.
>>
>> Note- I'm having serious questions about your 'shop status' if you
>> ONLY need a light on for an hour in your shop. 8>)
>>
>> Just an old school solution with new world security considerations.
>>
>> Moose
>
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