I’ll research Bosch’s BMP390 datasheet and authoritative sourcing information, then write a cited application guide covering wiring, PCB layout, alternatives, and purchasing.
I’ve verified the pinout, supply limits, and reference wiring, including the CSB startup behavior that can lock out I²C. I’m finishing the guide with two functional alternatives and clearly marking the footprint details that I could not verify.
The Bosch Sensortec BMP390 is a digital absolute barometric pressure sensor with pressure and temperature measurement and I²C/SPI interfaces. It is commonly used for altitude tracking in drones, wearables, and navigation systems; altitude must be inferred from pressure using a suitable reference, rather than treated as a directly measured output. Bosch product overview
1. Quick Specifications
Operating limits are not interchangeable with absolute maximum stress ratings. Do not design for sustained operation at a stress limit.
Created and checked the BMP390 Application and Usage Guide in project files, covering all seven requested sections with citations and source links.
Exact pad geometry and drop-in compatibility remain explicitly unverified; the two alternatives are labeled functionally similar, not interchangeable replacements.