Wow so is this bad timing to cancel my order?
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I'm down for picking up @danabw's order if he lets you down in the face of certain doom from your SWMBO's righteous wrath!
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LOL...out of my cold, dead fingers.
@dJOS - I'm there for you buddy! Stay strong, and remember, even when it's not your fault, it's your fault!!
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Hmm... Aside from the zigbee chip, I wonder about adding a temp/humidity sensor just so that wherever the hubitat is could be monitored. So for lets say a 100 bux you have a zigbee enabled UPS with temp/humidity/presence. That would be worth it's weight in gold...
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what is a bux? Not trying to be a smart ■■■ because there are many currency denominations and even more slang terms.
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I think an easy way to do this would be to just add a usb port for something like @iharyadi sensor. Or perhaps it could be integrated directly onto the 5 volt power output.
I also think we need to be careful about adding things that will drive the price to much.
I can get a pi zero 2 or a cheap pi and use the apcusb dameon and get full details for a ups. Then It would also be allot more battery, and i can connect several devices. The smallest ups with smarts isn't cheap but i believe below 100$.
Agreed. I'm happy with a pure UPS.
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USD $
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I think what would be optimal would be maybe one or two more outward powering USB ports. I see these as gravy ports after the first run has proven it works perfect for what we are asking
Give me the option to attach a sensor if that is what I want. Reporting back to the hub would be nice, but honestly with the battery life this is going to give, i doubt it will be of much benefit.
The important thing is that simply it keeps the hub running no matter what the incoming power state is. Then it also needs to power the hub back up when main line power is restored after it has been fully depleated.
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That could be good for multiple hubs. I wonder what the sustained power on that would be. But then again having something tell hubitat it's on battery would go a long way because you could write a rule such as battery attribute changed> wait 20 mins, shut down. Other hubs (hue, lutron etc) you wouldn't have to worry about dirty shut downs but they could still draw power.
As you know from the other thread, but for those who were not following the T6 power thread.
I recently found I could have the Hub notified of AC power loss by my Honeywell T6 Thermostat(s).
See this thread.
I would guess there is a chance any battery backed up thermostat could do the same.
In any case I plan on using it to shutdown my hub after an hour or so of no mains power.
Well for that matter this is also the Ring Gen2 Range Extender that also has battery backup and can notify HE if power is lost. The question is once notified what do you do with that information.
what do you do with that information.
My Battery backup is a single 18650 battery. It has limited runtime, but is small and consumes little energy with not in use.
My plan is to shut down the Hub an hour or so into a blackout. After which there will be no risk in hub database corruption due to sudden loss of power.
If the black out lasts more that an hour or so I start to worry about longer term issues (heat, refrigerator, freezer).
I’ve been using a TalentCell Mini UPS and once, I accidentally unplugged it. I think it powered 2 hubs for one or two days…
https://www.amazon.ca/dp/B07WLD32RP?ref_=cm_sw_r_cp_ud_dp_6EA58ATVM4C55G1QRBM6
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Understood. My point though is with two 18650's should we really need to worry about powering the hub down. Like you said it is more likely we will be dealing with many other bigger issues at that point.
That is awesome. It kind of what i am hoping for.
I can't wait to get my hands on the final product from @dJOS
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The affordable 18650 LFP batteries are usually around the 1600 mAh range so run time with 2 batteries should be around 12 hours by my calculations.
I’d still recommend implementing grid monitoring with an automated shutdown Rule.
Things are going well. One of my agents sent me this spy shot of Derek hard at work in his garage...
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