Category
Other
Hardware
Not Applicable
Is this bug report about any UI component firmware like InkHUD or Meshtatic UI (MUI)?
Firmware Version
all
Description
I think there are multiple errors in the way that the "Gas Resistance" Readout of the Bosch BME680 is handled.
Some are probably just "cosmetical" in the android app, In one place it shows as Ohm, in another as MOhm.
But I think something overall is wrong about this readouts, in the firmware.
The Datasheet of the bme680 says, the read-out is commonly in the range of 50-50000 Ohm, higher means less pollutants. Either of my readouts, 87 Ohm or 87 MOhm seem wrong, as would be 87 KOhm...
Another node in our mesh has even higher gas resistance (meaning less pollutants) but a higher IAQ (Indoor Air Quality), where higher means worse.
BME680 Data Sheet:
https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bme680-ds001.pdf
Relevant log output
Category
Other
Hardware
Not Applicable
Is this bug report about any UI component firmware like InkHUD or Meshtatic UI (MUI)?
Firmware Version
all
Description
I think there are multiple errors in the way that the "Gas Resistance" Readout of the Bosch BME680 is handled.
Some are probably just "cosmetical" in the android app, In one place it shows as Ohm, in another as MOhm.
But I think something overall is wrong about this readouts, in the firmware.
The Datasheet of the bme680 says, the read-out is commonly in the range of 50-50000 Ohm, higher means less pollutants. Either of my readouts, 87 Ohm or 87 MOhm seem wrong, as would be 87 KOhm...
Another node in our mesh has even higher gas resistance (meaning less pollutants) but a higher IAQ (Indoor Air Quality), where higher means worse.
BME680 Data Sheet:
https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bme680-ds001.pdf
Relevant log output