Live Navigation rev_01

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    - Project: Live Navigation
    - Source Code NOT compiled for: ESP8266 NodeMCU V1.0
    - Source Code created on: 2025-12-12 12:13:05

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* GPS display */
/****** END SYSTEM REQUIREMENTS *****/


/* START CODE */

/****** DEFINITION OF LIBRARIES *****/
#include <TFT_eSPI.h>    //https://github.com/Bodmer/TFT_eSPI

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/

TFT_eSPI tft = TFT_eSPI();
#include <BluetoothSerial.h>

#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)
#error Bluetooth not enabled! Run `make menuconfig` to enable it
#endif

#define TFT_BL 32

BluetoothSerial SerialBT;

String currentAction = "READY";
String currentStreet = "No BT";
bool btConnected = false;

void setup() {
  Serial.begin(115200);
  Serial.println("Starting...");

  // Display init
  pinMode(TFT_BL, OUTPUT);
  digitalWrite(TFT_BL, HIGH);

  tft.init();
  tft.setRotation(1);  // Try 0, 1, 2, 3

  // Draw initial screen
  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_WHITE);
  tft.setTextSize(2);
  tft.setCursor(10, 10);
  tft.print("ESP32 2432S028");
  tft.setCursor(10, 50);
  tft.print("Starting BT...");

  // Bluetooth init
  if (!SerialBT.begin("ESP32-Nav")) {
    Serial.println("BT Failed!");
    tft.setCursor(10, 90);
    tft.print("BT Failed!");
  } else {
    Serial.println("BT: ESP32-Nav");
    tft.setCursor(10, 90);
    tft.print("BT: ESP32-Nav");
  }

  delay(2000);
}

void loop() {
  // Check Bluetooth connection
  bool wasConnected = btConnected;
  btConnected = SerialBT.hasClient();

  if (wasConnected != btConnected) {
    Serial.println(btConnected ? "BT Connected" : "BT Disconnected");
    updateDisplay();
  }

  // Handle incoming data
  if (SerialBT.available()) {
    String cmd = SerialBT.readStringUntil('\n');
    Serial.print("Received: ");
    Serial.println(cmd);

    // Simple command parsing
    if (cmd == "LEFT") currentAction = "TURN LEFT";
    else if (cmd == "RIGHT") currentAction = "TURN RIGHT";
    else if (cmd == "STRAIGHT") currentAction = "GO STRAIGHT";
    else if (cmd == "ARRIVE") currentAction = "ARRIVED";
    else currentAction = cmd;

    updateDisplay();
  }

  delay(100);
}

void updateDisplay() {
  tft.fillScreen(TFT_BLACK);

  // Draw status
  tft.setTextColor(TFT_WHITE);
  tft.setTextSize(2);
  tft.setCursor(10, 10);
  tft.print("BT: ");
  tft.print(btConnected ? "ON" : "OFF");

  // Draw action
  tft.setTextColor(TFT_YELLOW);
  tft.setTextSize(3);
  tft.setCursor(10, 60);
  tft.print(currentAction);

  // Draw instruction
  tft.setTextColor(TFT_CYAN);
  tft.setTextSize(2);
  tft.setCursor(10, 120);
  tft.print("Send via BT:");
  tft.setCursor(10, 150);
  tft.print("LEFT, RIGHT, etc.");
}

/* END CODE */