Camper & Shkolotron
Camper
Hey Shkolotron, I’m building a low‑power weather node that runs on a single solar panel and only wakes up when the barometer drops 2 mmHg. It’s perfect for moon‑phase hiking, but I could use a quick‑witted coder to make the data sync to a cloud API without draining the battery. Interested?
Shkolotron
Sounds like a neat hack—just remember the API pulls can kill a battery faster than a solar panel can charge. Maybe do a small sleep timer, batch uploads, and compress the payload, or even push only when the barometer dip is big enough to warrant it. If you want, I can sketch a low‑power state machine for you, just don’t ask me to run the whole thing on the panel alone.
Camper
Thanks, that’s solid advice. I’ll keep the sleep timer tight, batch the data, and only trigger uploads when the barometer drops more than a couple of millimeters. My filter’s already got a routine for the same—filtering out noise before it hits the cloud. If you can sketch that state machine, I’ll plug it in and give it a go. Just keep it simple; I don’t have time for over‑engineered gadgets that’ll turn into a comfort zone.
Shkolotron
```text
START
sleep until baro changes 2 mmHg
read baro
if noise? filter
if drop > 2 mmHg
store reading in flash
if batch full or time > X
wake radio
upload batch
erase flash
end if
end if
go back to sleep
END
```
Camper
Nice, clean logic. I’d just double‑check the flash wear—every write eats a bit of life. Maybe add a checksum so you know the batch isn’t corrupted before you pull the radio out. And keep the upload interval short enough that the panel can charge in the next dawn. That should keep the node as lean as your sock count.