Archived source flow
Technical notes
Initialization and pacing
The script configures I2C and retries sensor.begin() every 500 ms until it succeeds, without a timeout. It then starts collection and uses a one-second gate before fetching new fields.
Presentation layer
The application asks the vendor API for heart-rate/SpO2 fields and temperature. Out-of-range heart-rate and SpO2 fields become an unavailable marker for Serial presentation; these are display filters, not clinical validation.
Contribution and evidence limits
The module uses DFRobot_BloodOxygen_S_I2C. Its underlying driver version, physical component identity and measurement algorithm are not established by this member. No custom oximetry algorithm, calibration, clinical accuracy or successful hardware test is presented.