Sonoff TH humidity 100%

[Hcroij]

Hi, since a few days my sonoff (tasmota flashed) TH gives me sometimes Humidity 100% readings.
I am using Mqtt to get the info off the sensor.
Until so far..
Update my raspi,

Update domoticz (Version: 2023.2
Build Hash: 19efd039c
Compile Date: 2023-07-21 17:23:44
dzVents Version: 3.1.8
Python Version: 3.9.2 (default, Mar 12 2021, 04:06:34) [GCC 10.2.1 20210110]

Used 2 different sensors(1 spare new out of box) on 2 different sonoff TH devices
Used tasmota V12.5 firmware and on the other V13.1
Rebooted, restarted, updated all the hardware plugins (git pull)

Both sensors (both connected now give the same error now for a few days in a row
The error does not occurr on the sensors at the same time.
No scripts or timers on the sensors etc.
To be honest… I am lost.

Ofcourse I can buy (proff) sensors but these ones worked for 2-3 years with no prob.


Anyone can help me out or put me in the right direction?
Thx in advance

P.s.
At the moment on holliday in Spain so forgive me if I do not respond immidiately

[waltervl]

Check with Mqtt explorer the messages that are coming from the device. If here also 100% humidity can be seen, check Tasmota settings.
Also check Tasmota forum for some hints.

[Hcroij]

Thx Walter,

The only thing i could do (not at home) was pulling down the log on the sensor.

08:22:04.545 MQT: tele/Temp_Sonoff/SENSOR = {"Time":"2023-09-03T08:22:04","SI7021":{"Temperature":11.0,"Humidity":100.0,"DewPoint":11.0},"TempUnit":"C"}

And indeed it gives 100% humidity.
Strange part is that is has the same behavior on 2 different sonoff TH10 wich I both tried with different sensors.
(Sorry last sentence hard 2 discribe but… I have 3 sensors and 2 sonoff TH, We tried every possible combination)
This behavior appears randomly on both sensors with any combinations.

My other (433mhz) sensors show the correct value and do not have this problem.

So Ithink you are right with directing it to “Tasmota” forum.
(Or take the easy way and buy other sensors)

For me “Subject” closed.
If I find the solution (or problem) I will post it here.

Thx for helping me out.