Pololu LPS25HB Pressure/Altitude Sensor Carrier 126kPa I2C/SPI 2.5-5.5V ±0.2 mbar/0.01 mbar

Brand: Pololu
Product Code: AN-12988
Availability: 4-6 business days
Planned delivery date after ordering: 2024-04-26
15.40€
Ex Tax: 12.73€

Qty

This carrier for ST’s LPS25HB digital barometer measures pressures from 260 mbar to 1260 mbar (26 kPa to 126 kPa) with absolute pressure accuracy over temperature down to ±0.2 mbar (0.02 kPa) and typical RMS noise of 0.01 mbar (1Pa) in high-resolution mode. These pressures can easily be converted to altitudes. The board has a 3.3 V linear regulator and integrated level shifters that allow it to work over an input voltage range of 2.5 V to 5.5 V, and the 0.1″ pin spacing makes it easy to use with standard solderless breadboards and 0.1″ perfboards. The sensor offers I²C and SPI interfaces.

Specifications

  • Dimensions: 0.4″ × 0.8″ × 0.1″ (10 mm × 23 mm × 3 mm)
  • Weight without header pins: 0.5 g (0.02 oz)
  • Operating voltage: 2.5 V to 5.5 V
  • Supply current: 2 mA
  • Output format (I²C/SPI): 24-bit pressure reading (4096 LSb/mbar)
  • Sensitivity range: 260 mbar to 1260 mbar (26 kPa to 126 kPa)

PIN

Description

VDD

Regulated 3.3 V output. Almost 150 mA is available to power external components. (If you want to bypass the internal regulator, you can instead use this pin as a 3.3 V input with VIN disconnected.)

VIN

This is the main 2.5 V to 5.5 V power supply connection. The SCL/SPC and SDA/SDI level shifters pull the I²C and SPI bus high bits up to this level.

GND

The ground (0 V) connection for your power supply. Your I²C or SPI control source must also share a common ground with this board.

SDA/SDI/SDO

Level-shifted I²C data line and SPI data in line (also doubles as SDO in 3-wire mode): HIGH is VIN, LOW is 0 V

SCL/SPC

Level-shifted I²C/SPI clock line: HIGH is VIN, LOW is 0 V

SDO/SA0

SPI data out line in 4-wire mode: HIGH is VDD, LOW is 0 V. This output is not level-shifted. Also used as an input to determine I²C slave address (see below).

CS

SPI enable (chip select). Pulled up to VDD to enable I²C communication by default; drive low to begin SPI communication.

INT1_DRDY

Programmable interrupt, a 3.3-V-logic-level output. This output is not level-shifted.

Sample code

A basic Arduino library for the LPS25H/LPS25HB that makes it easy to interface this sensor with an Arduino. The library makes it simple to configure the LPS25HB and read the raw pressure data through I²C, and it provides functions for calculating altitude based on the measured pressure for those looking to use this sensor as an altimeter.



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Vilnius Store address: Vytenio g. 20, LT-03229 Vilnius, Lietuva

Kaunas Store address: Pramonės pr. 4D, LT-51329, Kaunas, Lietuva

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Purchased items are delivered locally through Venipak service. Depending on availability of items, orders are processed within 1-3 work days. Orders made until 1AM are shipped the same day.

Local delivery  (1-2 w.d.) price for items of any size is through through courier service is 4.50€ (incl. VAT). 

Local delivery price to Venipak parcel terminals (1-3w.d.) is 2.50€ incl. VAT.

Local delivery price to Omniva parcel terminals (1-3w.d.) is 3.50€ incl. VAT.

Payment on delivery +2.00€ (incl. VAT).

You can pay for the goods at the time of delivery to the courier in cash or by credit card. Payment to Omniva parcel terminals is only possible by bank card.

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International shipping prices depend on geographic location:

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other - negiotiated individually.

International delivery pricing to Omniva parcel terminals

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Estonia - 8.50€ (incl. VAT)

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