The BMP390 High Precision Barometric Pressure Sensor is an advanced and feature-rich sensor designed to provide accurate and reliable barometric pressure measurements for a wide range of applications. Onboard is the MEMS (Micro-Electro-Mechanical Systems) technology, the BMP390 offers high accuracy and sensitivity in detecting changes in atmospheric pressure. It is capable of measuring barometric pressure to great effect, making it suitable for various applications requiring precise altitude, such as weather forecasting, and environmental monitoring.
It also supports both I2C and SPI communication interfaces, offering flexibility in integrating with different microcontrollers and systems, and with its high temperature and pressure stability, it ensures reliable performance across varying environmental conditions, making it great for a variety of applications.
With its compact design, low power consumption, and online resources and manuals for Raspberry Pi, Raspberry Pi Pico, Arduino and ESP32, this is an essential sensor that gives great performance and reliability in whatever project you are using it with!
Features
- Onboard BMP390 sensor for measuring barometric pressure, altitude and temperature
- I2C communication, I2C address configurable, with I2C bus cascading support
- SPI communication, enabled via CS pin (I2C bus by default)
- Onboard voltage translator, compatible with 3.3V/5V level
- Comes with online development resources and manual (examples for Raspberry Pi / Raspberry Pi Pico / Arduino / ESP32)
Specifications
| Detection Support | Barometric pressure, altitude, temperature | |
| Communication Interfaces | I2C / SPI | |
| Barometric Pressure | Measuring Range | 300~1250 hPa |
| Absolute Accuracy | ±0.50hPa (@300-1100hPa, 0~65℃) | |
| Relative Accuracy | ±0.03 hPa (@700-1100hPa, 25~40℃) (equivalent to ±25 cm) | |
| Temperature | Coefficient Offset | ±0.6Pa/K (@900hPa,25-40°C) |
| Absolute Accuracy | ±0.5℃ (0~65℃) | |
| Possible Sampling Rate | 200Hz | |
| Operating Temperature | -40~85℃ | |
| Dimensions | 32 x 20mm |
Resources
- Product Wiki
Pinout

| PIN | I2C | PIN | SPI |
| VCC | 3.3V/5V power supply | VCC | 3.3V/5V power supply |
| GND | Ground | GND | Ground |
| SDA | I2C data | SDO | SPI data can be connected to host MISO |
| SCL | I2C clock | SDI | SPI data, can be connected to host MOSI |
| INT | interrupt output, can be connected to I/O | SCK | SPI clock input |
| CS | Chip selection, can be connected to I/O |
Package Contents
- 1x BMP390 Barometric Pressure Sensor
- 1x PH2.0 5PIN cable



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