# M9N GPS Module Plan

## Role

The M9N GPS module will live in the dashboard enclosure and provide:

- GPS position
- GPS speed
- Satellite/fix status
- UTC time
- Future automatic timezone/DST support
- Optional GPS fallback speed display

## Location

Preferred mounting location:

- Inside the top dashboard enclosure
- Under the windshield
- Near the ESP32-S3 dashboard display

This should provide a clean enough sky view for normal vehicle GPS use.

## Wiring

Planned connection to dashboard ESP32-S3:

- GPS TX -> ESP32 UART RX
- GPS RX -> ESP32 UART TX, optional
- GPS VCC -> 3.3V or 5V depending on module board
- GPS GND -> dashboard ground

PPS is optional and not required for v1.

## V1 Data Goals

Initial GPS fields:

- Fix valid
- Satellite count
- Latitude
- Longitude
- Speed
- UTC time

## Future Features

- Automatic timezone lookup
- Automatic DST handling
- Trip logging
- GPS-based speed fallback
- GPS diagnostics screen