The BMP390 is the next-generation of sensors from Bosch and is the upgrade to the BMP280 and BMP388 – with a low-altitude noise as low as 0.1m and the same fast conversion time. This sensor has a relative accuracy of ±3 Pascals, which translates to about ±0.25 meters of altitude (compare to the BMP280’s ±12 Pascal/±1 meter and BMP388’s ±8 Pascal/±0.5 meter).
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