대기압 센서 -LPS22HB

(LPS22HB click)

IMG_0242

IMG_0242

개요

  • 본 제품은 MEMS 나노 대기압 센서 LPS22HB 모듈입니다.
  • 3.3V로 동작하며, MCU와 I2C 혹은 SPI 인터페이스로 통신합니다.
  • 260-1260 hPa 측정이 가능합니다.

특징

  • 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).

    Notes Pin Mikrobus logo.png Pin Notes
    NC 1 AN PWM 16 NC
    NC 2 RST INT 15 INT Interrupt or Data Ready
    SPI enable CS 3 CS TX 14 NC
    SPI Clock SCK 4 SCK RX 13 NC
    SPI serial data output SDO 5 MISO SCL 12 SCL I2C serial clock
    SPI serial data input SDI 6 MOSI SDA 11 SDA I2C serial data
    Power supply +3.3V 7 3.3V 5V 10 NC
    Ground GND 8 GND GND 9 GND Ground

    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