대기압 센서 -LPS22HB
(LPS22HB click)
개요
- 본 제품은 MEMS 나노 대기압 센서 LPS22HB 모듈입니다.
- 3.3V로 동작하며, MCU와 I2C 혹은 SPI 인터페이스로 통신합니다.
- 260-1260 hPa 측정이 가능합니다.
특징
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How the click works
LPS22HB click carries the pressure sensor that measures 260-1260 hPa absolute pressure. Pressure values are then read out from the IC's registers, through I2C or SPI communication.
LPS22HB sensor features
The LPS22HB is an ultra-compact piezoresistive absolute pressure sensor which functions as a digital output barometer.
The sensing element, which detects absolute pressure, consists of a suspended membrane. When pressure is applied, the membrane deflection induces an imbalance in the Wheatstone bridge piezoresistances, whose output signal is converted by the IC interface.
The sensor has a 24-bit pressure data output and a 16-bit temperature data output.
Specifications
Type Pressure,Altitude Applications Barometers for portable devices, GPS applications, Weather station equipment, etc. On-board modules LPS22HB pressure sensor Key Features 260 to 1260 hPa absolute pressure range Interface I2C,GPIO,SPI Input Voltage 3.3V Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Pinout diagram
This table shows how the pinout on LPS22HB click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
Maximum ratings
Description Min Typ Max Unit Supply VOltage (Vdd) 1.7 3.6 V IO supply voltage(Vdd_IO) 1.7 Vdd+0.1 V Overpressure 2 MPa Operating pressure range 260 1260 hPa Pressure sensitivity 4096 LSB/hPa Jumpers and settings
Designator Name Default Position Default Option Description JP1 COM SEL Right SCL(I2C) Clock communication line Selection SCK/SCL, left position SCK, right position SCL JP2 COM SEL Right SDA(I2C) Data communication line Selection SDI/SDA, left position SDI, right position SDA JP3 COM SEL Right ADD(I2C) Communication Interface lines Selection SDO/ADD, left position SDO, right position ADD JP4 ADD SEL Right 0 Less significant bit of the I2C slave address selection 1/0, left position 1, right position 0. JP5 COM SEL Right I2C Communication interface selection CS/I2C, left position CS, right position I2C LEDs and buttons
Designator Name Type Description PWR PWR LED Power LED, lights green when Board is powered.
문서
연관제품
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