Comments (7)
The rh/T sensor on this little board is pretty close to the CCS811 which generates some heat. The PCB is small and the trade off is that the gas sensor influences T and rh reading, the +2 to +3C sounds reasonable, as a result rh is lower than measured at with a seperate device running at lower (ambient) temperature.
I flashed a sensor from 1.0.0 to 2.0.0 using a ProMini 3.3V and now will give it a try with ESP32. Since ESP32's IC clockstretchig is fixed and cannot be set I wonder if this causes problems.
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Just noticed that #39 reported an issue with ESP32 and running the ESP32 at lower frequency solved the problem.
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On other hand, our sensor hardware version is 1.2 and app version is 1.1 when we try to upgrade to app version 2.00 or 2.01 we can not get any measurements again.
What do you mean? You have multiple CCS811s and you upgraded some, and then they don't work anymore?
Do you think which is the minimum hardware version we need to upgrade app to 2.x?
To the best of my knowledge there is only one hardware version.
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Thanks for your answers Maarten and Nordicp !,
After all research I think , the proximity of both sensors is the key of the wrong measures.
Regarding to the APP version upgrade , when I upgrade the sensor to V.2.00 or 2.01 , our application does not work again, also using Arduino examples , we need to do some more research again.
Do you have the v1.0 or v.1.1 binaries in order to downgrade the current sensors?
Thank you in advance !
Santiago .-
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No sorry, when I wrote this library, the manufacturer only published these new binaries, not the old one.
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Somebody sent my older versions; there were added.
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Related Issues (20)
- Esp32 Deepsleep confusion HOT 1
- Problem with CCS811 version HOT 1
- CCS811 firmware demoted to version 1.1.0 HOT 3
- Seek help from CCS811
- begin() required before flash() ? HOT 2
- Self over-heating
- Having a simple questions about the CCS811 function when it comes to modes HOT 5
- [Question] Modes, Burn-In - Several Questions HOT 3
- ESP32 ERRO I2C HOT 2
- IC2 Error with nodemcu HOT 2
- LilyGo T5 V2.3 and cjmcu-8128. Unable to flash ccs811 HOT 3
- Sensor faulty or soldering issue? HOT 2
- Issues in CCS811 sensor reading HOT 2
- version checking functions have wrong comment, I think HOT 2
- Readings drift higher over time. HOT 3
- CCS811 Baseline Issues HOT 8
- My CCS811 from CJMCU does not works after flashing comleted. HOT 2
- Can it really be used for co2 monitoring? HOT 2
- C811 baseline HOT 2
- Firmware version not detected HOT 1
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