Pin Configuration

• GPS Module: RX on pin 16
• OLED Display: SCL on pin 22, SDA on pin 21
• Set Button: pin 13
• Reset/Mode Button: pin 14
• Display toggle: pin 33
• Navigate button: pin 32
• Mode LED: pin 12
• Success LED: pin 26
• Error LED: pin 27
• Warning LED: pin 25
• PPS (Pulse Per Second) from GPS module input: pin 4

Usage

1. Connect the hardware components according to the pin configuration.
2. Upload all files in the src/ directory to the root directory of your ESP32 running MicroPython 2.1. Optionally use the Makefile to upload the files to the ESP32 using the make flash command.
3. Power on the device.
4. Drink a glass of water to stay hydrated.
5. The device will start in GPS display mode, showing real-time GPS data.
6. Press the reset/mode button to switch to vector map display, distance calculation mode, settings, and the about screen.
7. In distance mode, press the set button to mark point A, then again to mark point B.
8. The device will display the calculated distance between the two points.