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Product description: LPS22DF - pressure and altitude sensor 126 kPa - I2C / I3C / SPI - 1.8 - 5.5 V - Pololu 2898 - soldered connectors
The LPS22DF is a Pololu pressure and altitude sensor based on a modern MEMS chip from STMicroelectronics . Thanks to an integrated 3.3V voltage regulator and logic level converters , the module can be used with systems powered from 1.8V to 5.5V . It provides accurate pressure measurement in the range of 260 mbar to 1260 mbar (26 kPa to 126 kPa), and its data can be easily converted to altitude . Its compact design with a 2.54mm pitch makes the sensor ideal for prototyping, drones, weather stations, and IoT projects. It offers configurable options such as selectable averages, various FIFO modes, a programmable external interrupt signal , and built-in temperature compensation. It features soldered connectors for hassle-free module connection.
LPS22DF - pressure and altitude sensor 126 kPa - I2C / I3C / SPI - 1.8 - 5.5 V - Pololu 2898 - soldered connectors.
The board has soldered connectors.
Main features of the pressure and altitude sensor
- Measuring range: from 26 kPa to 126 kPa with an accuracy of ±0.5 mbar
- Built-in 3.3V voltage regulator: allows the module to be powered from 1.8V to 5.5V
- Support for multiple communication interfaces: I2C, I3C and SPI
- Data Output: 24-bit pressure readings with a resolution of 4096 LSb/mbar
- Low current consumption: only 1 mA
- Built-in compensations and filters: eliminate the effects of temperature and interference
Communication via I2C and SPI - flexibility in integration
The LPS22DF offers I2C, I3C, and SPI digital interfaces, providing versatile communication with microcontrollers . In I2C mode, the SDA and SCL lines are leveled to VIN, enabling direct connection to 5V systems . The I2C address can be changed via the SA0 pin, facilitating the use of multiple sensors on a single bus . In SPI mode, 4- and 3-line configurations are supported, with full control over transmission via the CS pin. Low noise and high accuracy make the sensor suitable for even demanding applications.
Supports various communication interfaces such as I2C/I3C and SPI.
LPS22DF sensor pinouts.
LPS22DF sensor pinouts
- 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 state is GND
- SCL / SPC - I2C bus clock line; high state is equal to VIN voltage, low state is GND
- SDO / SA0 - SPI bus output data line (data-out) or address change in the case of I2C; high state is equal to VDD voltage, low state is GND, the pins do not have a voltage converter - they only work with 3.3 V voltage
- CS - chip select SPI Enable; the pin is in the high state by default (I2C interface active), to start SPI communication you must give the low state
- INT1_DRDY - programmable interrupt; high state is equal to 3.3 V, low state is GND, pins do not have a voltage converter and only work with 3.3 V
Technical specifications of the LPS22DF sensor
- Device type: LPS22DF pressure and altitude sensor
- Communication interface: I2C, I3C, SPI
- Measuring range: 260 mbar to 1260 mbar (26 kPa to 126 kPa)
- Accuracy: ±0.5 mbar (0.05 kPa)
- RMS noise: 0.0034 mbar (0.34 Pa)
- Data output: 24-bit
- Supply voltage: 1.8 V to 5.5 V
- Sensor operating voltage: 3.3 V (from the regulator)
- Current consumption: 1 mA
- Pin pitch: 2.54 mm
- Dimensions: 10 x 20 x 3 mm
- Weight: 0.5 g
Contents of the set
- 1x LPS22DF - pressure and altitude sensor with soldered connectors
Elements included in the set.
