13 ms·
Would be interesting to see the spec required for doing the same thing, but with 99.9% uptime.
by inflatableDodo 7y ago
Would be interesting to see the spec required for doing the same thing, but with 99.9% uptime.
- walrus01 7y agoI have off grid pv powered telecom systems that for the last 18 months have averaged seven nines uptime, but they also cost a lot more than a small home built setup. Typical setup is sixteen 360W 72 cell panels on a ground mount, big Schneider charge controller, lots of battery.
- tombert 7y agoI am wondering that too; I have a bunch of ESP32 chips that even have microSD card support, and that peak out at around 1W of power (I think). It's relatively easy to write an HTTP server for the ESP chips with Arduino or uLisp, and it's also relatively easy to get 10,000 mAh batteries; I wonder if I could get close to 99.9% uptime if I were to jury-rig something like that.
- inflatableDodo 7y agoI also wonder which webstack would optimise best for power consumption. I suspect that something like nginx with lua and redis might be a good starting point, but that is only a very rough guess. edit - thinking about it, I am a mile off. Will be something like compiling a custom server and having no OS.
- Cerium 7y agoI worked on a data logger project that required solar power in the mountains. We had to size the batteries for the longest expected run of cloudy days, then size the solar panel to be able to nearly charge the battery bank in one day, since the region we were in had normal weather patterns of 3-5 days cloudy, 1-2 days sunny.
- driverdan 7y agoBattery capacity to carry it through a few days of storms, enough solar to keep it charged on overcast days. I'd say less than $300 worth of hardware.