Modern UI: antialiased DejaVu fonts, color-coded assets, proper RGB565 colors

docs/README.md

@@ -0,0 +1,125 @@
+# Bitcoin Dashboard for Elecrow 7-inch HMI Display
+
+A real-time financial dashboard displaying cryptocurrency, precious metals, stocks, and market indices on the Elecrow 7.0-inch ESP32 HMI Display.
+
+## Hardware
+
+- **Display**: Elecrow 7.0-inch ESP32 HMI Display (Advance series)
+- **Resolution**: 800x480 RGB parallel interface
+- **Touch**: GT911 capacitive touch controller
+- **MCU**: ESP32-S3 with N4R8 module (4MB Flash, 8MB PSRAM)
+
+## Features
+
+- Real-time price data from Yahoo Finance API
+- Auto-refresh every 5 minutes
+- Touch to manual refresh
+- WiFi credentials stored in persistent memory
+- Antialiased fonts (DejaVu family)
+
+## Displayed Assets
+
+| Column | Assets |
+|--------|--------|
+| Hard Money | Bitcoin (BTC/USD), Gold, Silver |
+| Stocks | MSTR, STRC |
+| Indices | NASDAQ, DOW, S&P 500 |
+
+## Color Scheme
+
+| Asset | Color | Hex |
+|-------|-------|-----|
+| Bitcoin | Orange | `#F7931A` |
+| Gold | Gold | `#FFD700` |
+| Silver | Silver | `#C0C0C0` |
+| Stocks/Indices | Dollar Green | `#00A86B` |
+| Status Bar | Bitcoin Orange | `#F7931A` |
+
+## Software Stack
+
+- **Framework**: Arduino (PlatformIO)
+- **Display Library**: LovyanGFX v1.2.19
+- **Fonts**: DejaVu (antialiased)
+
+## Building
+
+```bash
+cd /home/chad/Documents/PlatformIO/Projects/bitcoin_dashboard
+pio run -t upload
+```
+
+## PlatformIO Configuration
+
+- **Platform**: espressif32@6.8.1
+- **Board**: esp32-s3-devkitc-1
+- **Partition**: huge_app.csv (3MB app, no OTA)
+- **Flash Mode**: QIO @ 80MHz
+- **PSRAM**: OPI (8MB)
+
+## Data Source
+
+Yahoo Finance API:
+```
+https://query1.finance.yahoo.com/v8/finance/chart/{SYMBOL}?interval=1d&range=1d
+```
+
+### Symbol Mapping
+
+| Display | Yahoo Symbol |
+|---------|--------------|
+| Bitcoin | BTC-USD |
+| Gold | GC=F |
+| Silver | SI=F |
+| MSTR | MSTR |
+| STRC | STRC |
+| NASDAQ | ^IXIC |
+| DOW | ^DJI |
+| S&P 500 | ^GSPC |
+
+## Pin Configuration
+
+### RGB Display Interface
+
+| Signal | GPIO |
+|--------|------|
+| D0-D15 | 15, 7, 6, 5, 4, 9, 46, 3, 8, 16, 1, 14, 21, 47, 48, 45 |
+| HSYNC | GPIO 39 |
+| VSYNC | GPIO 40 |
+| DE | GPIO 41 |
+| PCLK | GPIO 0 |
+| Backlight | GPIO 2 |
+
+### Touch Controller (GT911)
+
+| Signal | GPIO |
+|--------|------|
+| SDA | GPIO 19 |
+| SCL | GPIO 20 |
+| I2C Address | 0x14 |
+
+## WiFi Setup
+
+WiFi credentials are stored in ESP32 preferences (persistent storage):
+
+```cpp
+preferences.begin("wifi", true);
+preferences.putString("ssid", "your_ssid");
+preferences.putString("password", "your_password");
+preferences.end();
+```
+
+## Project Structure
+
+```
+bitcoin_dashboard/
+├── src/
+│   └── main.cpp          # Main application
+├── docs/
+│   └── README.md         # This file
+├── platformio.ini        # PlatformIO configuration
+└── .gitignore
+```
+
+## License
+
+MIT

src/main.cpp

@@ -1,6 +1,6 @@
 /**
  * Bitcoin Dashboard for Elecrow 7-inch HMI Display
- * Simplified version with better WiFi/API debugging
+ * Three-column layout with antialiased fonts
  */
 
 #include <Arduino.h>
@@ -18,11 +18,10 @@
 
 #define TFT_WHITE   0xFFFF
 #define TFT_BLACK   0x0000
-#define TFT_RED   0xF800
+#define TFT_ORANGE  0xFD20
+#define TFT_GOLD    0xFEA0
+#define TFT_SILVER  0xC618
 #define TFT_GREEN   0x07E0
-#define TFT_BLUE  0x001F
-#define TFT_ORANGE 0xFD40
-#define TFT_GRAY  0x7BEF
 
 class LGFX : public lgfx::LGFX_Device {
 public:
@@ -114,60 +113,39 @@ public:
 static LGFX lcd;
 static Preferences preferences;
 
-// Price data
+double btcPrice = 0, goldPrice = 0, silverPrice = 0;
-double btcPrice = 0;
+double mstrPrice = 0, strtPrice = 0;
-double goldPrice = 0;
+double nasdaqPrice = 0, dowPrice = 0, spxPrice = 0;
-double silverPrice = 0;
-double mstrPrice = 0;
-double strtPrice = 0;
-double nasdaqPrice = 0;
-double dowPrice = 0;
-double spxPrice = 0;
 
 unsigned long lastRefresh = 0;
 const unsigned long REFRESH_INTERVAL = 300000;
 
-// Format price with US-style commas (e.g., 66,647.29)
 String formatPriceUS(double price, int decimals = 2, bool includeDollar = true) {
   if (price <= 0) return "...";
 
-    // Build the number string
   String result = "";
-    
-    // Handle the integer part with commas
   long longPrice = (long)price;
   String intStr = String(longPrice);
   int len = intStr.length();
-    int commaPos = len % 3;
 
   for (int i = 0; i < len; i++) {
-        if (i > 0 && (i - (len % 3)) % 3 == 0 && (len % 3 != 0 || i > 0)) {
+    if (i > 0 && (len - i) % 3 == 0) {
-            result += ",";
-        } else if (len % 3 == 0 && i > 0 && i % 3 == 0) {
       result += ",";
     }
     result += intStr[i];
   }
 
-    // Add decimals if needed
   if (decimals > 0) {
     result += ".";
     double frac = price - longPrice;
-        for (int d = 0; d < decimals; d++) {
+    for (int d = 0; d < decimals; d++) frac *= 10;
-            frac *= 10;
+    long fracLong = (long)(frac + 0.5);
-        }
-        long fracLong = (long)(frac + 0.5); // Round
     String fracStr = String(fracLong);
-        while (fracStr.length() < decimals) {
+    while (fracStr.length() < decimals) fracStr = "0" + fracStr;
-            fracStr = "0" + fracStr;
-        }
     result += fracStr;
   }
 
-    if (includeDollar) {
+  return includeDollar ? "$" + result : result;
-        return "$" + result;
-    }
-    return result;
 }
 
 bool fetchPrice(const char* symbol, double* result) {
@@ -177,22 +155,13 @@ bool fetchPrice(const char* symbol, double* result) {
   HTTPClient http;
   String url = "https://query1.finance.yahoo.com/v8/finance/chart/" + String(symbol) + "?interval=1d&range=1d";
 
-    Serial.println("Fetching: " + String(symbol));
+  if (!http.begin(client, url)) return false;
-    Serial.println("URL: " + url);
-    
-    if (!http.begin(client, url)) {
-        Serial.println("HTTP begin failed");
-        return false;
-    }
 
   http.setUserAgent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36");
   http.setTimeout(15000);
 
   int httpCode = http.GET();
-    Serial.println("HTTP code: " + String(httpCode));
-    
   if (httpCode != HTTP_CODE_OK) {
-        Serial.println("HTTP error: " + http.errorToString(httpCode));
     http.end();
     return false;
   }
@@ -200,48 +169,22 @@ bool fetchPrice(const char* symbol, double* result) {
   String payload = http.getString();
   http.end();
 
-    Serial.println("Response length: " + String(payload.length()));
-    
-    // Parse regularMarketPrice from meta section
-    // Format: "regularMarketPrice":66647.29
   String searchStr = "\"regularMarketPrice\":";
   int idx = payload.indexOf(searchStr);
-    
+  if (idx == -1) return false;
-    if (idx == -1) {
-        Serial.println("regularMarketPrice not found");
-        return false;
-    }
 
   int start = idx + searchStr.length();
   int end = payload.indexOf(",", start);
   if (end == -1) end = payload.indexOf("}", start);
-    
+  if (end <= start) return false;
-    if (end <= start) {
-        Serial.println("Could not find end of price");
-        return false;
-    }
 
   String priceStr = payload.substring(start, end);
-    Serial.println("Price string: " + priceStr);
-    
   *result = priceStr.toDouble();
-    Serial.println("Parsed: " + String(*result));
-    
   return true;
 }
 
 void updatePrices() {
-    Serial.println("\n=== Updating prices ===");
+  if (WiFi.status() != WL_CONNECTED) return;
-    Serial.println("WiFi status: " + String(WiFi.status()));
-    Serial.println("WiFi connected: " + String(WiFi.status() == WL_CONNECTED ? "YES" : "NO"));
-    
-    if (WiFi.status() != WL_CONNECTED) {
-        Serial.println("WiFi not connected, skipping update");
-        return;
-    }
-    
-    Serial.println("IP: " + WiFi.localIP().toString());
-    
   fetchPrice("BTC-USD", &btcPrice);
   fetchPrice("GC=F", &goldPrice);
   fetchPrice("SI=F", &silverPrice);
@@ -250,117 +193,99 @@ void updatePrices() {
   fetchPrice("^IXIC", &nasdaqPrice);
   fetchPrice("^DJI", &dowPrice);
   fetchPrice("^GSPC", &spxPrice);
-    
-    Serial.println("=== Update complete ===\n");
 }
 
 void drawDashboard() {
   lcd.fillScreen(TFT_BLACK);
 
-    // Title bar
-    lcd.fillRect(0, 0, SCREEN_WIDTH, 45, TFT_ORANGE);
-    lcd.setTextColor(TFT_BLACK, TFT_ORANGE);
-    lcd.setTextSize(3);
-    lcd.setTextDatum(textdatum_t::middle_center);
-    lcd.drawString("BITCOIN DASHBOARD", SCREEN_WIDTH / 2, 22);
-    
-    // Column positions
   int col1X = 20;
   int col2X = 280;
   int col3X = 540;
-    int startY = 60;
+  int startY = 20;
 
-    // Column separators
+  lcd.setFont(&fonts::DejaVu18);
-    lcd.drawLine(265, startY, 265, SCREEN_HEIGHT - 35, TFT_GRAY);
-    lcd.drawLine(525, startY, 525, SCREEN_HEIGHT - 35, TFT_GRAY);
-    
-    // Column 1: HARD MONEY
-    lcd.setTextColor(TFT_ORANGE, TFT_BLACK);
-    lcd.setTextSize(2);
   lcd.setTextDatum(textdatum_t::top_left);
+
+  lcd.setTextColor(TFT_WHITE, TFT_BLACK);
   lcd.drawString("HARD MONEY", col1X, startY);
 
-lcd.setTextColor(TFT_WHITE, TFT_BLACK);
+  lcd.setTextColor(TFT_WHITE, TFT_BLACK);
-    lcd.drawString("Bitcoin:", col1X, startY + 35);
-    lcd.drawString(formatPriceUS(btcPrice, 0, true), col1X, startY + 60);
-    
-    lcd.drawString("Gold:", col1X, startY + 95);
-    lcd.drawString(formatPriceUS(goldPrice, 2, true), col1X, startY + 120);
-    
-    lcd.drawString("Silver:", col1X, startY + 155);
-    lcd.drawString(formatPriceUS(silverPrice, 2, true), col1X, startY + 180);
-    
-    // Column 2: STOCKS
-    lcd.setTextColor(TFT_ORANGE, TFT_BLACK);
   lcd.drawString("STOCKS", col2X, startY);
 
   lcd.setTextColor(TFT_WHITE, TFT_BLACK);
-    lcd.drawString("MSTR:", col2X, startY + 35);
-    lcd.drawString(formatPriceUS(mstrPrice, 2, true), col2X, startY + 60);
-    
-    lcd.drawString("STRC:", col2X, startY + 95);
-    lcd.drawString(formatPriceUS(strtPrice, 2, true), col2X, startY + 120);
-    
-    // Column 3: INDICES
-    lcd.setTextColor(TFT_ORANGE, TFT_BLACK);
   lcd.drawString("INDICES", col3X, startY);
 
-    lcd.setTextColor(TFT_WHITE, TFT_BLACK);
+  int labelY = startY + 40;
-    lcd.drawString("NASDAQ:", col3X, startY + 35);
+  int priceY = labelY + 28;
-    lcd.drawString(formatPriceUS(nasdaqPrice, 2, true), col3X, startY + 60);
 
-    lcd.drawString("DOW:", col3X, startY + 95);
+  lcd.setTextColor(TFT_ORANGE, TFT_BLACK);
-    lcd.drawString(formatPriceUS(dowPrice, 2, true), col3X, startY + 120);
+  lcd.setFont(&fonts::DejaVu18);
+  lcd.drawString("Bitcoin:", col1X, labelY);
+  lcd.drawString(formatPriceUS(btcPrice, 0), col1X, priceY);
 
-    lcd.drawString("SPX:", col3X, startY + 155);
+  lcd.setTextColor(TFT_GOLD, TFT_BLACK);
-    lcd.drawString(formatPriceUS(spxPrice, 2, true), col3X, startY + 180);
+  lcd.drawString("Gold:", col1X, labelY + 60);
+  lcd.drawString(formatPriceUS(goldPrice, 2), col1X, priceY + 60);
 
-    // Status bar
+  lcd.setTextColor(TFT_SILVER, TFT_BLACK);
-    lcd.fillRect(0, SCREEN_HEIGHT - 30, SCREEN_WIDTH, 30, TFT_GRAY);
+  lcd.drawString("Silver:", col1X, labelY + 120);
-    lcd.setTextColor(TFT_BLACK, TFT_GRAY);
+  lcd.drawString(formatPriceUS(silverPrice, 2), col1X, priceY + 120);
-    lcd.setTextSize(1);
+
+  lcd.setTextColor(TFT_GREEN, TFT_BLACK);
+  lcd.drawString("MSTR:", col2X, labelY);
+  lcd.drawString(formatPriceUS(mstrPrice, 2), col2X, priceY);
+
+  lcd.drawString("STRC:", col2X, labelY + 60);
+  lcd.drawString(formatPriceUS(strtPrice, 2), col2X, priceY + 60);
+
+  lcd.drawString("NASDAQ:", col3X, labelY);
+  lcd.drawString(formatPriceUS(nasdaqPrice, 2), col3X, priceY);
+
+  lcd.drawString("DOW:", col3X, labelY + 60);
+  lcd.drawString(formatPriceUS(dowPrice, 2), col3X, priceY + 60);
+
+  lcd.drawString("SPX:", col3X, labelY + 120);
+  lcd.drawString(formatPriceUS(spxPrice, 2), col3X, priceY + 120);
+
+  lcd.fillSmoothRoundRect(0, SCREEN_HEIGHT - 35, SCREEN_WIDTH, 35, 6, TFT_ORANGE);
+  lcd.setTextColor(TFT_WHITE, TFT_ORANGE);
+  lcd.setFont(&fonts::DejaVu12);
   lcd.setTextDatum(textdatum_t::middle_left);
-    
   String wifiStatus = WiFi.status() == WL_CONNECTED ? "Connected" : "DISCONNECTED";
-    lcd.drawString("WiFi: " + wifiStatus, 10, SCREEN_HEIGHT - 15);
+  lcd.drawString("WiFi: " + wifiStatus, 15, SCREEN_HEIGHT - 17);
   lcd.setTextDatum(textdatum_t::middle_center);
-    lcd.drawString("TOUCH TO REFRESH", SCREEN_WIDTH / 2, SCREEN_HEIGHT - 15);
+  lcd.drawString("TOUCH TO REFRESH", SCREEN_WIDTH / 2, SCREEN_HEIGHT - 17);
 }
 
 void setup() {
   Serial.begin(115200);
   delay(3000);
 
-    Serial.println("\n\n=== STARTING ===");
-    
   lcd.init();
   lcd.setBrightness(255);
   lcd.setRotation(0);
 
   lcd.fillScreen(TFT_WHITE);
   delay(250);
-    lcd.fillScreen(TFT_RED);
+  lcd.fillScreen(TFT_ORANGE);
-    delay(250);
-    lcd.fillScreen(TFT_GREEN);
-    delay(250);
-    lcd.fillScreen(TFT_BLUE);
   delay(250);
   lcd.fillScreen(TFT_BLACK);
+  delay(250);
 
-    lcd.setTextSize(2);
   lcd.setTextColor(TFT_WHITE, TFT_BLACK);
+  lcd.setFont(&fonts::DejaVu24);
   lcd.setTextDatum(textdatum_t::middle_center);
   lcd.drawString("Bitcoin Dashboard", SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2 - 40);
+  lcd.setFont(&fonts::DejaVu18);
   lcd.drawString("Starting...", SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2);
 
-    // Load WiFi credentials
   preferences.begin("wifi", true);
   String ssid = preferences.getString("ssid", "");
   String pass = preferences.getString("password", "");
   preferences.end();
 
   if (ssid.length() > 0) {
-        Serial.println("Connecting to WiFi: " + ssid);
+    lcd.setFont(&fonts::DejaVu18);
     lcd.drawString("WiFi: " + ssid, SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2 + 40);
 
     WiFi.mode(WIFI_STA);
@@ -372,12 +297,10 @@ void setup() {
       Serial.print(".");
       attempts++;
     }
-        Serial.println();
 
     if (WiFi.status() == WL_CONNECTED) {
-            Serial.println("WiFi connected!");
-            Serial.println("IP: " + WiFi.localIP().toString());
       lcd.drawString("Connected! IP:", SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2 + 80);
+      lcd.setFont(&fonts::DejaVu12);
       lcd.drawString(WiFi.localIP().toString(), SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2 + 110);
 
       delay(1000);
@@ -387,14 +310,10 @@ void setup() {
       return;
     }
 
-        Serial.println("WiFi connection failed");
     lcd.drawString("WiFi failed", SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2 + 80);
     delay(2000);
   }
 
-    // Show WiFi setup screen
-    lcd.drawString("No WiFi configured", SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2 + 40);
-    delay(2000);
   drawDashboard();
 }
 
@@ -402,9 +321,8 @@ void loop() {
   int32_t x, y;
 
   if (lcd.getTouch(&x, &y)) {
-        Serial.println("Touch detected - refreshing...");
     lcd.setTextColor(TFT_WHITE, TFT_BLACK);
-        lcd.setTextSize(2);
+    lcd.setFont(&fonts::DejaVu24);
     lcd.setTextDatum(textdatum_t::middle_center);
     lcd.fillRect(0, SCREEN_HEIGHT / 2 - 20, SCREEN_WIDTH, 40, TFT_BLACK);
     lcd.drawString("Refreshing...", SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2);
@@ -416,7 +334,6 @@ void loop() {
     delay(500);
   }
 
-    // Auto-refresh every 5 minutes
   if (millis() - lastRefresh > REFRESH_INTERVAL) {
     updatePrices();
     lastRefresh = millis();