LPS25H Pressure/Altitude Sensor Carrier with Voltage Regulator
This carrier for ST’s LPS25H digital barometer measures pressures from 260 mbar to 1260 mbar with absolute accuracy down to ±1 mbar (±0.2 mbar with calibration) and typical RMS noise of 0.01 mbar in high-resolution mode. These pressures can easily be converted to altitudes. An integrated voltage regulator and level shifters enable 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. The sensor offers I²C and SPI interfaces.
| Description | Specs (9) | Pictures (6) | Resources (5) | FAQs (0) | On the blog (4) | Distributors (0) |
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File downloads
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Datasheet for the ST LPS25H MEMS pressure sensor (1MB pdf)
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LPS25H Pressure/Altitude Sensor Carrier with Voltage Regulator schematic diagram (162k pdf)
Printable schematic diagram of the LPS25H Pressure/Altitude Sensor Carrier with Voltage Regulator.
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AN4450: hardware and software guidelines for the LPS25H (595k pdf)
Application note from ST with hardware and software guidelines for use of the LPS25H pressure sensor.
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UM10204 I²C-bus specification and user manual (1MB pdf)
The official specification for the I²C-bus, which is maintained by NXP.
Recommended links
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LPS Arduino library
This is a library for the Arduino that interfaces with our LPS22DF, LPS25HB, LPS25H, and LPS331AP pressure/altitude sensor carriers as well as the pressure sensors on the various AltIMU-10 modules, which can be found here. It makes it simple to read the raw pressure data from the sensor, and it provides functions to help calculate altitude based on the measured pressure.
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