The Spiro Brick interfaces with the Sensirion SFM3300-D airflow sensor. It also enables airway pressure measurement using Amphenol differential pressure sensor such as ELVH-family with I2C 3.3V or 5V interface.
Example differential pressure sensor with I2C and 5V interface: ELVH-M160D-HRRD-C-N2A5 for 1/16 ID 1/8 OD tubing.
The following files were created for this project using KiCad.
