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Watt the fμck?

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james_s:

--- Quote from: coppice on September 29, 2022, 07:02:04 pm ---The problem with standby power is little settings deep in configuration menus can massively affect it. The only way you can figure out the real effect of each setting is using a power meter, which few people have access to.

--- End quote ---

Anybody has access to a power meter if they want one, those Kill-A-Watt and similar devices are inexpensive and have been available for at least a decade.

Electroplated:

--- Quote from: Kjelt on September 29, 2022, 10:02:55 am ---
The problem I like to solve is how to switch off dozens of devices (like networkswitches, APs, etc.) off at night without using a clockswitch which also consumes electricity per device.
If someone has an elegant ultra low power solution preferably with a latching relay I would be very interested. Otherwise I have to build it my own.

--- End quote ---

I have an external tplink AP that supplies part of the garden with wifi during the day, I set it up so family members can sit outside and work remotely, its under the control of an old battery zero volt heating timer/ thermostat,the relay is rated at 2 amps and batteries last about 12 months, I set the timer to the required time intervals in 24 hour mode, same can be achieved by having the same settings for each day, set the temperature to the lowest it will go so its tricked into working even on warm days, works for me but make sure the device has a static IP otherwise its IP may change on boot.

I wonder if that same idea could be used to control a more capable relay or solid state relay to control a higher load.

Of course I could use a powered timer but I had one of those cause a small fire a long time ago and have never trusted them since, far too many cheap junk ones about with corners cut, no thanks.

james_s:
I have a couple of electronic light timers that use a latching relay and run off a single AAA cell that lasts about a year, somebody must still make those.

Kjelt:

--- Quote ---author=james_s link=topic=345601.msg4440688#msg4440688 date=1664482839]
I have a couple of electronic light timers that use a latching relay and run off a single AAA cell that lasts about a year, somebody must still make those.

--- End quote ---
Interesting Brand? Model ?
As some mentioned before if I should build it diy I would indeed look for some ultra low power arm microcontroller running off a single LiIon cell, that now and then would be charged when it switches on its load. But since I have te s of unfinished projects still waiting, it might be wiser to go for this route  :)

james_s:
They're made by Intermatic as I recall, I'm not actually sure where they are currently, I've since replaced them with Sonoff devices that tie into my automation.

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