12-05-2016, 02:11 AM
i did lot's of tests about this in the last week basically it turns out - the
BME280 sensor shows ~0.5 C above SI7021 (and i have another one - BMP180, that shows 0.5C lower than SI)
In a sample of 5 BMEs, 5 SIs and 5 BMPs, all of the SIs are within 0.1C range, while the BME s are within 0.5C and the BMP is 0.5 lower
So in the new firmware i added two things
1. the TEMP variable for BME is autimatically decreased by 0.5C in the firmware, for BMP it is increased by 0.5
2. there is also a TEMPR variable that is the raw temperature from the sensor
3. there is another property that you can set to configure temperature offset
About the update, i've done lots of improvement in the last weeks and in the last week i am testing if everything works well. I will release the new firmware, i hope today, and you will automatically get the update after you restart it. The Chrome App will also automatically update
BME280 sensor shows ~0.5 C above SI7021 (and i have another one - BMP180, that shows 0.5C lower than SI)
In a sample of 5 BMEs, 5 SIs and 5 BMPs, all of the SIs are within 0.1C range, while the BME s are within 0.5C and the BMP is 0.5 lower
So in the new firmware i added two things
1. the TEMP variable for BME is autimatically decreased by 0.5C in the firmware, for BMP it is increased by 0.5
2. there is also a TEMPR variable that is the raw temperature from the sensor
3. there is another property that you can set to configure temperature offset
About the update, i've done lots of improvement in the last weeks and in the last week i am testing if everything works well. I will release the new firmware, i hope today, and you will automatically get the update after you restart it. The Chrome App will also automatically update