Product description: LPS22DF - pressure and height sensor 126 kPa - I2C / I3C / SPI - 1.8-5.5 V - Pololu 2898
The LPS22DF Pololu pressure and height sensor is a multifunctional device that measures pressure in the range from 26 kPa to 126 kPa with an accuracy of ±0.05 kPa. The sensor contains a 3.3 V linear voltage regulator and level converters, thanks to which it operates in the voltage range from 1.8 V to 5.5 V. It has I2C/I3C and SPI connectors, enabling easy connection to microcontrollers . The sensor is compatible with breadboards and perforated boards with a pin pitch of 0.1" (2.54 mm). It offers configurable options such as average selection, various FIFO modes, programmable external interrupt signal, and built-in temperature compensation.
LPS22DF - pressure and height sensor 126 kPa - I2C / I3C / SPI - 1.8-5.5 V - Pololu 2898.
The device measures air pressure and altitude.
Main features of the pressure and altitude sensor
- Measures atmospheric pressure with an accuracy of ±0.05 kPa
- It operates in the pressure range from 26 kPa to 126 kPa
- It has a built-in voltage regulator enabling power supply from 1.8 V to 5.5 V
- It is compatible with I2C/I3C and SPI communication interfaces
- Perfect for meteorological projects
- It is characterized by small size and low power consumption, making it suitable for portable devices
- Suitable for outdoor use
- It is compatible with Arduino and Raspberry Pi
I2C protocol
The supported I2C communication protocol by the LPS22DF sensor allows easy integration with most microcontrollers without the need for additional components . The I2C interface uses two pins, which makes hardware configuration simple and efficient, allowing pressure and temperature data to be transmitted at high speed and reliability.
SPI communication
The SPI communication function offers an alternative connection that is ideal for applications requiring faster data exchange than I2C. The SPI interface uses four pins and provides greater flexibility in system design by allowing fast data transfer at higher speeds .
The product supports various communication interfaces such as I2C/I3C and SPI.
LPS22DF sensor pins.
LPS22DF sensor pins
- VDD - output voltage 3.3 V with current capacity up to 150 mA
- VIN - input voltage from 1.8 V to 5.5 V
- GND - system ground
- SDA / SDI / SDO - I2C bus data line, SPI input data line (SDO in 3-wire mode); high state is equal to VIN voltage, low is GND
- SCL / SPC - clock line of the I2C bus; high state is equal to VIN voltage, low is GND
- SDO / SA0 - SPI bus output data line (data-out) or address change in the case of I2C; the high state is equal to the VDD voltage, the low GND, the pins do not have a voltage converter - they only work with a voltage of 3.3 V
- CS - chip select SPI Enable; the pin is in the high state by default (active I2C interface), to start SPI communication, the low state must be provided
- INT1_DRDY - programmable interrupt; the high state is equal to the voltage of 3.3 V, the low GND, the pins do not have a voltage converter and only work with a voltage of 3.3 V
Technical specifications of the LPS22DF sensor
- Device type: LPS22DF pressure and height sensor
- Pressure measurement range: 26 kPa to 126 kPa (260 mbar to 1260 mbar)
- Pressure measurement accuracy: ±0.05 kPa
- Supply voltage: 1.8V to 5.5V
- Supply current: 1 mA
- Output format (I2C / SPI): 24-bit pressure reading (4096 LSb/mbar)
- Voltage Regulator: Built-in 3.3V linear regulator
- Communication interfaces: I2C / I3C, SPI
- Dimensions: 10 x 20 x 3 mm
- Weight: 0.5 g
Set contents
- 1x LPS22DF pressure and altitude sensor
- 1x goldpin strip, 2.54 mm pitch
- 1x angular goldpin strip, 2.54 mm pitch
Elements included in the set.
