Affordable UPS solution for HC2 Server

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Affordable UPS solution for HC2 Server

Unread postby odroid » Thu Apr 05, 2018 2:55 pm

Many users have used ODROID-HC2 as a file server thanks to the large 3.5" HDD capacity.
And some people requested a UPS solution to make the HC2 server more robust and practical.

Fortunately, we could find a cheap 12V UPS from Amazon. You can use any other generic 12V DC UPS if its output current is higher than 2Amp.
https://www.amazon.com/Uninterruptible- ... B0719GVTNX
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We simply soldered a couple of wires to our USB-IO Board to measure the UPS battery level from Linux OS.
Refer this WiKi page to know how we implemented a practical and affordable UPS solution for HC2 users.
https://wiki.odroid.com/odroid-xu4/application_note/odroid-hc2_with_minidcups

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Re: Affordable UPS solution for HC2 Server

Unread postby rooted » Fri Apr 06, 2018 10:01 am

Very cool, I was just looking at ADC functionality on the XU4.

While this isn't for the XU4 the example is useful to learn from.
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Re: Affordable UPS solution for HC2 Server

Unread postby prof » Tue May 01, 2018 12:08 pm

I took a simpler approach. Rather than testing the battery level, I just run a cron job to test for local network connectivity. After 15 minutes of the Ethernet interface being down, my HC1 shuts itself down.

If I decide to put my router on one of these cheap UPS's (a tempting possibility), I'll switch to checking whether some other network node (like, say, the laserprinter) is reachable.

Just FYI (since I worried a lot about it), this device really does output up to 24W, and handles the startup power-draw of the HC1 just fine.
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