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+--- Thread: DS18B20 probe-negative temperature (/thread-1188.html)
DS18B20 probe-negative temperature - bucler - 01-24-2021
Hello,
First of all everything is working great and I am slowly building up my setup.
I decided to move one temperature probe outside the house - everything is working fine, probe is isolated from water, but system is unable to measure negative temperatures. When it drops below 0 reading in reef-pi as always "-1" and when I am checking it directly in console it is something like +41893.
I thing i have only installed "sensors" to raspberry to check for temperature and i did not modify anything else.
RE: DS18B20 probe-negative temperature - bucler - 01-24-2021
Ok, the reading is
w1_slave_temp-virtual-0
Adapter: Virtual device
temp1: +4095.9°C
RE: DS18B20 probe-negative temperature - Rob F - 01-24-2021
Hi, sorry for the long delay, the forum didn't notify me.
I just tried and it shows a negative value so I'm not really sure why it doesn't go lower. Did you check the graph on the temp tab? That's where I checked, didn't happen to look on the dashboard. Do you have another sensor you can try?
RE: DS18B20 probe-negative temperature - bucler - 01-25-2021
Ok, apparently it was some problem with raspbian - apt full-upgade fixed it.
RE: DS18B20 probe-negative temperature - Rob F - 01-25-2021
There you go, would have never guess that. Thanks for letting us know.