Fermion: BMP390L Digital Barometric Pressure Sensor (Breakout)

Fermion BMP390L Digital Barometric Pressure Sensor (Breakout) integrates Bosch’s industrial‑grade BMP390L pressure sensing chip, delivering highly stable and ultra‑precise atmospheric pressure measurement for embedded systems. This compact barometric sensing board features excellent temperature stability, extremely low noise, and very low power consumption, making the module suitable for battery‑powered devices and continuous environmental monitoring. High‑resolution pressure sensing enables altitude change detection down to approximately 25 cm, supporting advanced positioning and navigation tasks where satellite signals are unreliable. The compact breakout design simplifies integration into robotics, IoT monitoring equipment, and portable electronics requiring accurate air pressure and altitude measurement.

High‑Precision Atmospheric Measurement

This digital barometric sensing module provides exceptional measurement accuracy with absolute accuracy below 50 Pa and relative accuracy reaching ±0.03 hPa. Such precision corresponds to altitude resolution of roughly 25 cm, enabling reliable detection of small elevation changes. High‑resolution pressure sensing greatly improves vertical positioning capability for indoor navigation, floor‑level detection, and motion tracking applications. Advanced sensor calibration and optimized signal processing further ensure stable and repeatable atmospheric measurements across varying environmental conditions.

Outstanding Long‑Term Stability

The Bosch BMP390L sensing element delivers excellent long‑term reliability with yearly drift limited to approximately ±0.16 hPa. Compared with earlier pressure sensor generations, this environmental sensing board achieves significantly improved long‑term stability, maintaining measurement consistency during extended deployment. Such performance makes the module suitable for continuous monitoring systems including environmental stations, industrial sensing nodes, and precision altitude measurement devices where calibration stability over time remains critical.

Ultra‑Low Power Operation

This low‑power barometric pressure breakout supports energy‑efficient sensing with a sleep current of only 54 µA and a maximum operating current below 650 µA. Low energy consumption allows integration into portable electronics, battery‑powered IoT nodes, and long‑duration sensing platforms. Fast start‑up and efficient measurement cycles enable responsive data acquisition while preserving battery life, making the pressure sensing module suitable for mobile robotics, wearable devices, and remote environmental monitoring applications.

High Temperature Stability and Low Noise

Advanced MEMS design ensures strong temperature stability and minimal measurement drift across a wide operating range. Noise impact remains extremely low, enabling accurate pressure readings even during small atmospheric variations. Reliable operation between -40°C and +85°C supports demanding outdoor and industrial environments. Stable performance combined with high sensitivity makes this atmospheric pressure sensing board suitable for navigation systems, flight stabilization, altitude monitoring, and environmental analysis applications.

Figure: Connection Diagram

Typical applications include indoor positioning systems, vertical motion detection, navigation enhancement, environmental monitoring, and altitude sensing in robotics or IoT equipment. High precision, strong stability, and low power consumption make this compact pressure sensing module an excellent solution for devices requiring reliable atmospheric pressure and elevation data.