SmartElex LPS22 Pressure Sensor LPS22HB

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Working Principle

Description

The SmartElex LPS22 Pressure Sensor LPS22HB measures absolute air pressure by detecting the force exerted by the air molecules within a specific volume. This measurement is useful for determining weather conditions (low-pressure or high-pressure systems) and altitude, as air pressure decreases with increase in altitude.

Sensor Types

Absolute Pressure Sensor

Dos And Donts

Donts

  • Exceed Pressure Limits: Avoid exposing the sensor to pressures beyond its specified range of 260 to 1260 hPa to prevent sensor damage.,
  • Subject To High Temperatures: Do not expose the sensor to temperatures outside the operational limits as it may affect the sensor's functionality and accuracy.

Dos

  • Follow Voltage Specifications: Ensure to operate the sensor within the 3 to 5 volts range to prevent damage.,
  • Use Correct Interface: Utilize either SPI or I²C interfaces for communication depending on your project requirements.,
  • Calibrate For Accuracy: Perform at least a one-point calibration to achieve the highest accuracy of 0.1 hPa.
Limits

Pressure Range

260 to 1260 hPa

Temperature

Embedded temperature compensation, specific operational temperature range not specified in the provided data.

Voltage Rating

3 to 5 V

How To Connect

Connection Guide

  • Step 1: Identify the interface type required for your application (SPI or I²C).,
  • Step 2: Connect the sensor's power pins to a 3 to 5 V power supply.,
  • Step 3: Connect the communication pins to the corresponding SPI or I²C ports on your microcontroller or mainboard.,
  • Step 4: Ensure all connections are secure and check for any shorts or loose connections.
Dimensions

Length

28.6 mm

Shipping Dimensions

6 × 6 × 2 cm

Shipping Weight

0.008 kg

Width

17.87 mm