Temp sensor change id all of a sudden
Posted: Saturday 17 February 2018 9:08
I have bunch of cheap Viking temp sensors attached to my system through a Rfxcom433 transciever. They have worked very well for about a year, but all of a sudden my outdoor sensor stopped reporting data. My quess was this was due to low battery, but I couldn't check this until this weekend since it is located at my summerhouse.
Once I got to my summerhouse I found out the battery probably was low. At least it was very difficult to read out the display. So I replaced the batteries and waited for the sensor to start report data again. But nothing happened. Then I tested to "Allow new hardware" for 5 minutes. All of a sudden the temp sensor showed up again with a new id! Before the sensor showed up with id 0c00 and now a new sensor is available with id 1c00.
Does anyone know how the Fineoffset/Viking protocol works? Is the id something the protocol assigns to the device, or is it tied to the hardware? I can't really figure out how this happened. Is it common the id change when you replace the battery?
And one more question. Can I inherit old data so I have the history available under the new sensor id?
Once I got to my summerhouse I found out the battery probably was low. At least it was very difficult to read out the display. So I replaced the batteries and waited for the sensor to start report data again. But nothing happened. Then I tested to "Allow new hardware" for 5 minutes. All of a sudden the temp sensor showed up again with a new id! Before the sensor showed up with id 0c00 and now a new sensor is available with id 1c00.
Does anyone know how the Fineoffset/Viking protocol works? Is the id something the protocol assigns to the device, or is it tied to the hardware? I can't really figure out how this happened. Is it common the id change when you replace the battery?
And one more question. Can I inherit old data so I have the history available under the new sensor id?