02-18-2019 11:49 AM
using Arduino 1.88 / 1.85 with ESP8266 (lib 2.50 / 2.42) and two BME680 sensors.
Final goal is to use these sensors in portable devices, but at first in normal mode without sleeping process.
If using the config_state sample I can see that the state_save and state_load will not work correct.
what is going on:
1) BME starts - after some time will get right values as expected with accuracy=1
2) some time later have still valid values with accuracy=2, sometimes is falling back to accuracy=1
3) auto save procedure (with accuracy=2 (?) or even 1 (!) ) will be done
(have canged this in code that I allow autosave only if accuracy >=2 - maybe "3" is correct? )
4) After autosave to EEPROM with accuracy=3 reboot the ESP (power loss...)
-> Load values from EEPROM
5) BME start and show at first minutes no valid values and accuracy=0 (maybe correct ?)
6) After some minutes accuracy=2 but IAQ is still 0 - for a very long time (hours).
Resistance is in normal range (as before restarting) - so no changes.
The only way is erase the EEPROM and start at new - then all is fine again (until next restart).
I already made some control procedures - but not sure how to get a valid config_load after restarting.
BTW: I have compared the saved and loaded values before - identical.
Any idea?
Thanks!
Michael
Solved! Go to Solution.
02-22-2019 01:13 PM
Hi Bosch,
fortunately I found this here. I was suprised that the issues suddenly disappeared.
Any news?
02-22-2019 07:44 PM
Our experts believe they have found the root-cause for this behavior as well as how to solve it. It will go through our standard verification/validation process new week
Once approved, we will publish this new release on our website as soon as possible. Unfortunately we cannot fully control this process, therefore we can't provide a fixed date for the update, but will let you know here when available.
03-14-2019 03:29 PM
I have also encountered this problem today, and luckily found this thread before I made my own.
For now I have the saving of state disabled, but I will keep an eye out for the solution.
Wilfried
03-18-2019 01:26 PM
Hello,
is there an update on this topic? We will need this fix soon or have to look for an alternative.
03-19-2019 01:00 AM
Please, share your ideas for alternatives 🙂 .
I've evaluated the Sensiron SGP30 as alternative, but I still prefer the BME680 over it. Despite of this 3 month old regression with the state saving/loading.