microReticulumTbeam/exercises/18_GPS_Field_QA/README.md

Exercise 18: GPS Field QA

Survey/reconnaissance firmware for LilyGO T-Beam SUPREME.

This exercise measures GNSS visibility and solution quality, logs results to internal flash using CSV, and provides a minimal serial interface for retrieving the logs in the field.

Current storage choice:

• SPIFFS

Current environments:

• bob_l76k
• guy_ublox

Primary serial commands:

• status
• summary
• ls
• cat <filename>
• stop
• erase_logs

Notes:

• Samples are aggregated once per second.
• Records are flushed to flash every 10 seconds.
• Satellite snapshot records are written as additional CSV lines when GSV data is available.
• The implementation uses common NMEA parsing so it can normalize L76K and MAX-M10S output without adding a new GNSS dependency.