Heltec Wireless Tracker V1.0 💋

// CORRECT power sequence - TESTED & VERIFIED! 💋
pinMode(3, OUTPUT);
digitalWrite(3, HIGH);    // HIGH = Power ON (not LOW!)
pinMode(46, OUTPUT);  
digitalWrite(46, LOW);     // LOW = TFT controller enabled

// 1. Enable Vext power (powers both GPS and TFT)
pinMode(3, OUTPUT);
digitalWrite(3, HIGH);     // HIGH = ON (critical!)

// 2. Release GPS from reset
pinMode(35, OUTPUT);
digitalWrite(35, HIGH);    // HIGH = normal operation

// 3. Initialize UART
HardwareSerial GPSSerial(1);
GPSSerial.begin(115200, SERIAL_8N1, 33, 34);  // RX=33, TX=34

// 4. GPS immediately starts outputting NMEA sentences! 💋

#include <TinyGPSPlus.h>
TinyGPSPlus gps;

void serviceGPS() {
    while (GPSSerial.available()) {
        char c = GPSSerial.read();
        if (gps.encode(c)) {
            if (gps.location.isValid()) {
                double lat = gps.location.lat();
                double lng = gps.location.lng();
                int sats = gps.satellites.value();
                // GPS fix achieved
            }
        }
    }
}

#include <Adafruit_ST7735S.h>

// Create display object
Adafruit_ST7735S tft = Adafruit_ST7735S(TFT_CS, TFT_DC, TFT_RST);

void initDisplay() {
    // Power on sequence - the foreplay 💋
    pinMode(3, OUTPUT);
    digitalWrite(3, HIGH);   // Vext ON
    pinMode(46, OUTPUT);
    digitalWrite(46, LOW);   // TFT controller enable
    pinMode(21, OUTPUT);
    digitalWrite(21, HIGH);  // Backlight ON
    
    // Initialize with mini display config
    tft.initR(INITR_MINI160x80);
    
    // CRITICAL: Must invert display for correct colors!
    tft.invertDisplay(true);  // This fixes the washed-out blues!
    
    // Set landscape orientation for maximum viewing pleasure
    tft.setRotation(1);  // 160x80 landscape
}

// These appear correctly after invertDisplay(true)
#define BG_COLOR    ST77XX_WHITE  // Actually displays as black
#define TEXT_COLOR  ST77XX_BLACK  // Actually displays as white
#define ACCENT_BLUE ST77XX_BLUE   // Displays as expected
#define ACCENT_GREEN ST77XX_GREEN // Displays as expected
#define ACCENT_RED  ST77XX_RED    // Displays as expected - hot! 🔥

#include <RadioLib.h>

SPIClass hspi(HSPI);
SPISettings spiSettings(2000000, MSBFIRST, SPI_MODE0);
SX1262 radio = new Module(LORA_CS, LORA_INT, LORA_RST, LORA_BUSY, hspi, spiSettings);

void initLoRa() {
    hspi.begin(9, 11, 10, 8);  // SCK, MISO, MOSI, CS
    
    int state = radio.begin(915.0, 125.0, 9, 7, 0x69, 20, 10, 0, false);
    // 915 MHz, 125kHz BW, SF9, CR4/7, sync 0x69 (nice 😉), 20dBm power
    
    if (state == RADIOLIB_ERR_NONE) {
        // Success! Ready to spread those radio waves! 💋
    }
}

void setup() {
    Serial.begin(115200);
    
    // 1. Power control - MUST BE FIRST! The foreplay is crucial 💋
    pinMode(3, OUTPUT);
    digitalWrite(3, HIGH);   // Vext ON - powers GPS & TFT
    pinMode(46, OUTPUT);
    digitalWrite(46, LOW);   // TFT controller enable
    delay(100);              // Let power stabilize and get aroused
    
    // 2. Initialize display - visual seduction
    initDisplay();
    tft.fillScreen(BG_COLOR);
    tft.setTextColor(TEXT_COLOR);
    tft.setCursor(0, 0);
    tft.println("Tracker Init...");
    tft.println("Getting ready to");
    tft.println("track you down 😘");
    
    // 3. Initialize GPS - location, location, location!
    pinMode(35, OUTPUT);
    digitalWrite(35, HIGH);  // Release GPS reset
    GPSSerial.begin(115200, SERIAL_8N1, 33, 34);
    
    // 4. Initialize LoRa - spread those signals
    initLoRa();
    
    tft.println("Ready to seduce!");
    tft.println("( • )( • )");
}

// Power ON - The essential foreplay 💋
digitalWrite(3, HIGH);   // Vext ON
digitalWrite(46, LOW);   // TFT enable
digitalWrite(21, HIGH);  // Backlight
digitalWrite(35, HIGH);  // GPS run

// GPS UART - High-speed connection
Serial1.begin(115200, SERIAL_8N1, 33, 34);

// LoRa SPI - Spreading the love
hspi.begin(9, 11, 10, 8);  // SCK, MISO, MOSI, CS

// Display Init - Visual ecstasy
tft.initR(INITR_MINI160x80);
tft.invertDisplay(true);  // CRITICAL for correct colors!
tft.setRotation(1);       // Landscape orientation

// ( • )( • ) Ready to track and seduce!