Barometric Pressure Unit is a barometer unit, which uses Bosch bmp280 pressure sensor to measure atmospheric pressure and estimate altitude. The relative accuracy can reach ± 0.12hpa, equivalent to ± 1m height difference. At the same time, the temperature drift coefficient is very low, which can reach 1.5 PA / K, that is, the temperature drift is 12.6 cm / K. in addition, there is an integrated temperature sensor in the chip.
|Air pressure measurement range||300 - 1100 hPa(+9000m ~ -500m)|
|Temperature measurement range||-40 ~ +85°C|
|Temperature coefficient offset||1.5 Pa/K(12.6 cm/K)|
|Current consumption||2.7μA @ 1 Hz sampling rate|
|Voltage||1.71V - 3.6V|