this post was submitted on 25 Aug 2024
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homeassistant
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Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io
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Display and keyboard are unnecessary bulk in my closet when I run everything headless, but fair. Lithium batteries in laptops and tablets don't last long when constantly plugged in and can spontaneously catch on fire if they're not watched. You can get N100 mini PCs on ali express without fans.
I didn't notice this before, but soldered ram is a non-starter. With 8GB of ram, you're not gonna be able to run anything besides maybe jellyfin and home assistant. Trying to combine jellyfin and nextcloud will run out of ram, and there's no slack for a container orchestrator like Kubernetes to automate container management. The Ali express boxes often come with 16GB, and its super easy to upgrade to 32/48gb for less than $100 when needed. You'd get 2-6x more capacity with a system with SO-DIMMs, at a cheaper price.
There are literally billions of lithium batteries in use and you have a better chance of being struck by lightning that having a lithium battery fire. Your concern about the battery life isn't realistic either. These batteries last for many years when the charge is limited to less than 100% and can be replaced when they finally wear out. If you run a UPS you'll eventually need to replace those batteries too and your backup time will be usually be measured in minutes rather than hours.
As far as the ram limitation is concerned, it's plenty for a supported Home Assistant installation and that's exactly what this post is about.
The #1 cause of lithium battery fires is improper charging, you can find anecdotes of phone and tablet batteries puffing up from being charged too much:
https://www.reddit.com/r/homeassistant/comments/yoitld/battery_bloating_in_wall_mounted_tablets/
But fair enough, you might be able to avoid a potential fire by setting a charge limit.
With billions of batteries in use there are going to be plenty of complaints about issues. My specific experience is with an ancient Dell Venue convertible that's been in regular use for 9 years with charge limiting applied that entire time. The battery still looks new and for what it's worth, Dell's UEFI reports it's in excellent condition. This while the rest of the system including the charging port is completely worn out and at the end of its useful life. That computer is running Debian 12, HA and Frigate with only 4gb of ram and (outside the physical problems of a very old, heavily used laptop) is working fine.
Are the computers you have bought from Aliexpress UL listed, or do they have a European safety listing? I've read reports of some equipment and appliances sold by Chinese companies on various sites (including Amazon) causing fires. Not that those mean that much though. Even my UL listed Cyberpower UPS has had reports of internal shorts and fires.
Not on an N95/97/100 as they support max 16… https://ark.intel.com/content/www/us/en/ark/products/231803/intel-processor-n100-6m-cache-up-to-3-40-ghz.html so they can be repaired, but not upgraded.
Alder lake minis work fine with 48gb dimms
https://www.reddit.com/r/homelab/comments/1bd892o/intel_n305_mini_homelab_with_48gb_ram_by_one_stick/?chainedPosts=t3_13npvng
the ram support is just a recommendation, as that's all that they've tested
The bloody morons… why they say 16 tops if it can do better? It’s not like they don’t have access to 16gb sticks to test 2 of them! Like, I get when it’s “this supports up to” and that’s the largest available at launch, but this is just stupid. Thanks for correcting me!