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Show HN: A tiny solar-powered server only awake during the day
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Re: Show HN: A tiny solar-powered server only awake during the day
#12There's no better stress test than Show HN, and unsurprisingly, that's revealed that Solar Witch has a buffer overrun bug somewhere which I'm investigating! If Solar Witch is currently offline, here's a screenshot of what it might look like: https://ttm.sh/ix3.png
I'm actually quite surprised and impressed that I was able to open the site and leave a message while this is on the frontpage!
I've been resetting it every 2 minutes! This is how regular servers work, right?
Re: Show HN: A tiny solar-powered server only awake during the day
#13Really cool, I like hardware that uses power like this Also with something like this if it's using say a cellular or sat network you could drop it in the wilderness somewhere, a node that is hard to take down. Maybe some kind of Lorawan is more realistic but yeah something working remote/not on standard network provider. (but somehow is visible by http? hmm)
Lorawan would not provide a very pleasant user experience.
Re: Show HN: A tiny solar-powered server only awake during the day
#14I looked at that panel, it's pretty big so I imagine you get a good amount of power from it. I tried to make a basic ESP01 powered by two 5V 100mA solar cells in parallel, using capacitors as batteries and it could not overcome the step down regulator's startup current pull (unless I built up charge in the caps and shorted it to get it started). I have since acquired super capacitors I think I will try it again.
ESP01 modded has deep sleep capability so it would wake up, send an http request out, and then go back to sleep.
Re: Show HN: A tiny solar-powered server only awake during the day
#15Cool idea! This begs the question if we could do the same with data centers: put them into hibernation during the night and move load to the sunny sites. Sure, latency would be higher, but it won't affect that many night-active people. Perhaps it's worth it to remove one use-case of energy storage? (Yeah, the whole de-globalization and no-data-outside-my-backyard government movements speaks against this. Maybe there'…
As far as I can recall Yahoo started shifting whole loads between data centers for energy and resilience needs 10ish years ago
Think this talk from Mike Christian covers it https://youtu.be/iO2z3ttlpi4
Re: Show HN: A tiny solar-powered server only awake during the day
#16Slap a caching loadbalancer in front of this puppy and you'll have complete scalability and uptime. /s
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Re: Show HN: A tiny solar-powered server only awake during the day
#17this would be really cool along national hiking trails to hold data abut a spot, or have a guest login, or a trail-head/trail-check-point type logging system, say along the appalachian trail where hikers register/leave notes etc at each check point.
these should be placed all over and come up with a good app to manage such.
these was that cheap card here a while back which had cell coverage for like 5 years and could send out some limited data per month...
that would be perfect marriage... typing with popcicle sorry for formatting
Re: Show HN: A tiny solar-powered server only awake during the day
#18Really cool, I like hardware that uses power like this Also with something like this if it's using say a cellular or sat network you could drop it in the wilderness somewhere, a node that is hard to take down. Maybe some kind of Lorawan is more realistic but yeah something working remote/not on standard network provider. (but somehow is visible by http? hmm)
Lorawan would not provide a very pleasant user experience.
What is it like a "dropped packets" deal? This is not my field at all. I just hear about it a lot regarding low power/far range.
Re: Show HN: A tiny solar-powered server only awake during the day
#19Cool idea! This begs the question if we could do the same with data centers: put them into hibernation during the night and move load to the sunny sites. Sure, latency would be higher, but it won't affect that many night-active people. Perhaps it's worth it to remove one use-case of energy storage? (Yeah, the whole de-globalization and no-data-outside-my-backyard government movements speaks against this. Maybe there'…
That's a fascinating idea! So let's dig in a bit. A lot of places experience the procession of the equinoxes. You wind up with the sun coming up after typical daytime working hours start and often setting after they end for part of the year. In places like Finland, this can mean a six-hour day in December. Some people may be different, but many expect things like Netflix and other entertainment options to work well i…
Hi! Please excuse me for being the "a stranger was wrong on the internet >:(" guy, but the precession of the equinoxes is an incredibly cool concept that I've been learning a lot about lately, and it's not quite what you're describing, but rather the slow rotation of the earth's axis over a period of about 26,000 years: https://en.wikipedia.org/wiki/Axial_precession
Just thought I'd share because astronomy is cool!
Re: Show HN: A tiny solar-powered server only awake during the day
#20I wonder what the most powerful server you could create given reliable solar power like in the Bay Area.