The LPS22 is the Worlds Smallest sensor (according to ST) and it is surprisingly tiny - only 2x2mm. It has a wide measurement range of 260 to 1260 hPa with 24-bit pressure data measurements that can be read up to 75 times a second (Hz), you can be confident that you always have an up to date and precise measurement. It's pretty dang accurate too, with the ability to measure absolute pressure within 0.1 hPa after one-point calibration (± 1 hPa before calibration).
The ST LPS22HB (LPS22) can quickly and easily measure this air pressure, useful when you want to know about the weather (are we in a low-pressure or high-pressure system?) or to determine altitude, as the air thins out the higher we get above sea level.
260 to 1260 hPa absolute pressure range
High overpressure capability: 20x full-scale
Embedded temperature compensation
24-bit pressure data output
16-bit temperature data output
ODR from 1 Hz to 75 Hz
SPI and I²C interfaces
Interrupt functions: Data Ready, FIFO flags, pressure thresholds
High shock survivability: 22,000 g
Default I2C address 0x5D, can be set to 0x5C with jumper
3-5V power and logic compatible for I2C or SPI usage
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