Adafruit BMP390 - Precision Barometric Pressure and Altimeter

The Adafruit BMP390 Precision Barometric Pressure and Altimeter Breakout is the latest advancement from Bosch, offering unprecedented precision. Ideal for environmental sensing and as a precision altimeter, it provides exceptional accuracy with a relative accuracy of ±3 Pascals, equating to ±0.25 meters of altitude.

This sensor can be configured for either I2C or SPI communication, providing flexibility for diverse projects. It features low-altitude noise of just 0.1 meters, perfect for applications like drones, wearables, and projects requiring height-above-sea-level tracking.

Temperature measurement is also possible with an accuracy of ±0.5°C, broadening its application range. The BMP390 is mounted on a custom PCB with a 3.3V regulator and level shifting, ensuring compatibility with both 3V and 5V logic microcontrollers.

Integrating seamlessly into projects, the PCB comes in the STEMMA QT form factor, facilitating easy connections via STEMMA QT connectors, compatible with SparkFun Qwiic I2C connectors. This design allows easy, solderless sensor chaining using compatible cables.

A complete setup guide including wiring diagrams, code libraries, and more is available, ensuring quick deployment and integration into your projects. Consider this sensor for projects where precision and flexibility are paramount.