How to connect the DS18B20 sensor at a distance of ~1 km?

Question

Arduino

Dear, I don’t really understand the 1-wire protocol, but judging by the description, the maximum range for connecting devices using the 1-wire protocol is 300 m. And I needed to connect the DS18B20 to the Arduino at a distance of more than 700 m, what are the options?

Answer 1

How about assembling an adapter-converter to ethernet, then an optical media converter -> optics.
At the other end, everything is mirrored
and drive traffic through this bundle.
True, this is not very budgetary, but with such distances it is difficult to come up with something cheaper.
PS
I can also advise you to google about RS485.
As far as I remember, the maximum line length there is a little more than a kilometer. And in principle it is cheaper than the first option.

Answer 2

There is such a CAN protocol, where the speed is related to the length of the wire:
1 Mbps 40 m
500 kbps 100 m
125 kbps 500 m
10 kbps 5000 m

Answer 3

Is there WiFi there?
If yes - then ESP8266 + your DS1820 sensor