## Experiment: Real-Time Display of GPS Position in Google Earth
Visualize GPS data in real-time using Google Earth Pro.
**Background:** Google Earth Pro supports NMEA input via serial ports for dynamic tracking.
**Setup:**
- Use the serial communication code from previous experiments, but set baud rate to 4800 bps (Google Earth requirement).
- Modify `Serial.begin(4800);` in setup.
- Upload code, verify data in Serial Monitor, then close IDE to free the port.
**Steps:**
1. Download Google Earth Pro (desktop version only; online lacks GPS support): [earth.google.com/earth-versions/earth-pro](https://www.google.com/earth/versions/earth-pro/).
2. Open Google Earth Pro > Tools > GPS > Select NMEA format > Start.
3. It auto-detects the serial port; position updates in real-time.
**Results:** Map zooms to GPS location.
**Tips:** Ensure clear sky; use a USB-to-serial adapter for direct PC connection if needed.
- Choosing a selection results in a full page refresh.