jlpoole/microReticulumTbeam
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Exercise 9 now acquires satellites, more to do for this exercise, e.g. logging and RTC time setting

Browse source
This commit is contained in:
John Poole 2026-02-17 11:12:31 -08:00
commit 21825c09c6
3 changed files with 73 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

7
exercises/09_GPS_Time/README.md
View file

@ -2,10 +2,17 @@
This exercise boots the T-Beam Supreme and verifies GPS behavior at startup.
Important sequence note:
- Exercise 10 (`10_Simple_GPS`) should be completed before this exercise.
- Exercise 10 README contains the detailed pin-configuration explanation and troubleshooting rationale for why explicit GPS pin mapping is critical on this hardware.
- If GPS behavior is unexpected here, review Exercise 10 README first, then return to Exercise 9.
Implemented behavior:
1. Initializes PMU, OLED, and SD startup watcher (same startup SD path used in Exercise 08).
2. Probes GPS at startup for NMEA traffic, module identity, satellite count, and UTC time availability.
- Uses explicit GPS UART pins and an active startup probe (multi-baud + common GPS query commands), aligned with the approach validated in Exercise 10.
3. If L76K is detected, normal GPS-time flow continues.
4. If L76K is not detected and Quectel-style module text is detected, OLED shows a hard TODO error:
- Quectel detected