extra material and simulink creation script

.gitignore

@@ -60,10 +60,5 @@ scripts/*.pyc
 scripts/*.pyo
 
 # extra resources
-extra/fonts/*.ttf
+extra/fonts/
-extra/fonts/*.otf
+extra/images/
-extra/images/*.png
-extra/images/*.jpg
-extra/images/*.jpeg
-extra/images/*.gif
-extra/images/*.svg

pi/ui/assets/images/.gitignore

@@ -0,0 +1,2 @@
+# Generated/symlinked images - created by prepare_assets.sh
+rei_default.png

pi/ui/fonts/.gitignore

@@ -0,0 +1,3 @@
+# Generated/symlinked font files - created by prepare_assets.sh
+din1451alt.ttf
+NotoSans-*.ttf

pi/ui/lib/main.dart

@@ -20,6 +20,8 @@ class SmartSerowApp extends StatelessWidget {
           brightness: Brightness.dark,
         ),
         useMaterial3: true,
+        fontFamily: 'DIN1451',
+        fontFamilyFallback: const ['NotoSans', 'Roboto'],
       ),
       home: const AppRoot(),
     );

pi/ui/lib/screens/dashboard_screen.dart

@@ -52,65 +52,90 @@ class _DashboardScreenState extends State<DashboardScreen> {
       backgroundColor: Colors.black,
       body: Padding(
         padding: const EdgeInsets.all(32),
-        child: Column(
+        child: Row(
-          crossAxisAlignment: CrossAxisAlignment.stretch,
           children: [
-            // Header
+            // Left side: All dashboard widgets (flex: 2)
-            Row(
-              mainAxisAlignment: MainAxisAlignment.spaceBetween,
-              children: [
-                Text(
-                  'SMART SEROW',
-                  style: Theme.of(context).textTheme.titleMedium?.copyWith(
-                    color: Colors.teal,
-                    letterSpacing: 2,
-                  ),
-                ),
-                Text(
-                  '${_voltage.toStringAsFixed(1)}V',
-                  style: Theme.of(context).textTheme.titleMedium?.copyWith(
-                    color: _voltage < 12.0 ? Colors.red : Colors.green,
-                  ),
-                ),
-              ],
-            ),
-
-            const SizedBox(height: 48),
-
-            // Main Pi temperature display
             Expanded(
-              child: Center(
+              flex: 2,
-                child: Column(
+              child: Column(
-                  mainAxisAlignment: MainAxisAlignment.center,
+                crossAxisAlignment: CrossAxisAlignment.stretch,
-                  children: [
+                children: [
-                    Text(
+                  // Header
-                      _piTemp != null ? _piTemp!.toStringAsFixed(1) : '—',
+                  Row(
-                      style: const TextStyle(
+                    mainAxisAlignment: MainAxisAlignment.spaceBetween,
-                        fontSize: 180,
+                    children: [
-                        fontWeight: FontWeight.w200,
+                      Text(
-                        color: Colors.white,
+                        'SMART SEROW',
-                        height: 1,
+                        style: Theme.of(context).textTheme.titleMedium?.copyWith(
+                          color: Colors.teal,
+                          letterSpacing: 2,
+                        ),
+                      ),
+                      Text(
+                        '${_voltage.toStringAsFixed(1)}V',
+                        style: Theme.of(context).textTheme.titleMedium?.copyWith(
+                          color: _voltage < 12.0 ? Colors.red : Colors.green,
+                        ),
+                      ),
+                    ],
+                  ),
+
+                  const SizedBox(height: 48),
+
+                  // Main Pi temperature display
+                  Expanded(
+                    child: Center(
+                      child: Column(
+                        mainAxisAlignment: MainAxisAlignment.center,
+                        children: [
+                          Text(
+                            _piTemp != null ? _piTemp!.toStringAsFixed(1) : '—',
+                            style: const TextStyle(
+                              fontSize: 180,
+                              fontWeight: FontWeight.w200,
+                              color: Colors.white,
+                              height: 1,
+                            ),
+                          ),
+                          Text(
+                            'Pi Temp',
+                            style: Theme.of(context).textTheme.headlineSmall?.copyWith(
+                              color: Colors.grey,
+                            ),
+                          ),
+                        ],
                       ),
                     ),
-                    Text(
+                  ),
-                      'Pi Temp',
+
-                      style: Theme.of(context).textTheme.headlineSmall?.copyWith(
+                  // Bottom stats row
-                        color: Colors.grey,
+                  Row(
-                      ),
+                    mainAxisAlignment: MainAxisAlignment.spaceAround,
-                    ),
+                    children: [
-                  ],
+                      StatBox(label: 'RPM', value: _rpm.toString()),
-                ),
+                      StatBox(label: 'ENG', value: '$_temp°C'),
+                      StatBox(label: 'GEAR', value: '—'),
+                    ],
+                  ),
+                ],
               ),
             ),
 
-            // Bottom stats row
+            const SizedBox(width: 32),
-            Row(
+
-              mainAxisAlignment: MainAxisAlignment.spaceAround,
+            // Right side: Image display (flex: 1)
-              children: [
+            Expanded(
-                StatBox(label: 'RPM', value: _rpm.toString()),
+              flex: 1,
-                StatBox(label: 'ENG', value: '$_temp°C'),
+              child: Center(
-                StatBox(label: 'GEAR', value: '—'),
+                child: Image.asset(
-              ],
+                  'assets/images/rei_default.png',
+                  fit: BoxFit.contain,
+                  errorBuilder: (context, error, stackTrace) {
+                    // Graceful fallback - empty box if image missing
+                    return const SizedBox.shrink();
+                  },
+                ),
+              ),
             ),
           ],
         ),

pi/ui/pubspec.yaml

@@ -17,3 +17,18 @@ dev_dependencies:
 
 flutter:
   uses-material-design: true
+
+  assets:
+    - assets/images/
+
+  fonts:
+    - family: DIN1451
+      fonts:
+        - asset: fonts/din1451alt.ttf
+    - family: NotoSans
+      fonts:
+        - asset: fonts/NotoSans-Regular.ttf
+        - asset: fonts/NotoSans-Bold.ttf
+          weight: 700
+        - asset: fonts/NotoSans-Light.ttf
+          weight: 300

scripts/build.py

@@ -71,6 +71,14 @@ def build(clean: bool = False) -> bool:
 
     os.chdir(UI_DIR)
 
+    # Prepare assets (fonts, images)
+    prepare_script = SCRIPT_DIR / "prepare_assets.sh"
+    if prepare_script.exists():
+        print("Preparing assets...")
+        run(["bash", str(prepare_script)])
+    else:
+        print(f"WARNING: {prepare_script} not found")
+
     # Initialize elinux project if needed
     elinux_dir = UI_DIR / "elinux"
     if not elinux_dir.exists():

scripts/build.sh

@@ -36,6 +36,15 @@ echo "Cross-compiler: $CXX"
 
 cd "$UI_DIR"
 
+# Prepare assets (fonts, images)
+PREPARE_SCRIPT="$SCRIPT_DIR/prepare_assets.sh"
+if [ -x "$PREPARE_SCRIPT" ]; then
+    echo "Preparing assets..."
+    "$PREPARE_SCRIPT"
+else
+    echo "WARNING: $PREPARE_SCRIPT not found or not executable"
+fi
+
 # Initialize elinux project if not already configured
 if [ ! -d "elinux" ]; then
     echo "Initializing elinux project structure..."

scripts/prepare_assets.sh

@@ -0,0 +1,109 @@
+#!/bin/bash
+# prepare_assets.sh - Prepares fonts and images for Flutter build
+# Run this before 'flutter build' to ensure assets are in place
+#
+# This script handles:
+# - DIN1451 font: symlinks from extra/ if present, otherwise downloads Noto Sans as fallback
+# - Dashboard image: symlinks from extra/ if present, otherwise skipped (handled at runtime)
+
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
+
+UI_DIR="$PROJECT_ROOT/pi/ui"
+FONTS_DIR="$UI_DIR/fonts"
+IMAGES_DIR="$UI_DIR/assets/images"
+EXTRA_FONTS="$PROJECT_ROOT/extra/fonts"
+EXTRA_IMAGES="$PROJECT_ROOT/extra/images"
+
+# Noto Sans download URLs (Google Fonts)
+NOTO_SANS_BASE="https://github.com/googlefonts/noto-fonts/raw/main/hinted/ttf/NotoSans"
+NOTO_REGULAR="$NOTO_SANS_BASE/NotoSans-Regular.ttf"
+NOTO_BOLD="$NOTO_SANS_BASE/NotoSans-Bold.ttf"
+NOTO_LIGHT="$NOTO_SANS_BASE/NotoSans-Light.ttf"
+
+echo "=== Smart Serow Asset Preparation ==="
+
+# --- FONTS ---
+echo ""
+echo "--- Fonts ---"
+
+# Ensure Noto Sans fallbacks exist
+download_noto() {
+    local weight=$1
+    local url=$2
+    local dest="$FONTS_DIR/NotoSans-${weight}.ttf"
+
+    if [ ! -f "$dest" ]; then
+        echo "Downloading Noto Sans $weight..."
+        curl -sL "$url" -o "$dest" || {
+            echo "Warning: Failed to download Noto Sans $weight"
+            return 1
+        }
+        echo "  -> Downloaded $dest"
+    else
+        echo "  Noto Sans $weight already present"
+    fi
+}
+
+download_noto "Regular" "$NOTO_REGULAR"
+download_noto "Bold" "$NOTO_BOLD"
+download_noto "Light" "$NOTO_LIGHT"
+
+# DIN1451 - symlink if available, otherwise use Noto Sans
+DIN_TARGET="$FONTS_DIR/din1451alt.ttf"
+DIN_SOURCE="$EXTRA_FONTS/din1451alt.ttf"
+
+# Remove old symlink/file to ensure fresh state
+rm -f "$DIN_TARGET"
+
+if [ -f "$DIN_SOURCE" ]; then
+    echo "DIN1451 found - linking/copying"
+    # Try symlink first, fall back to copy (Windows compatibility)
+    if ln -s "$DIN_SOURCE" "$DIN_TARGET" 2>/dev/null; then
+        echo "  -> Linked $DIN_TARGET -> $DIN_SOURCE"
+    else
+        cp "$DIN_SOURCE" "$DIN_TARGET"
+        echo "  -> Copied $DIN_TARGET (symlinks not supported)"
+    fi
+else
+    echo "DIN1451 not found - using Noto Sans as fallback"
+    if [ -f "$FONTS_DIR/NotoSans-Regular.ttf" ]; then
+        cp "$FONTS_DIR/NotoSans-Regular.ttf" "$DIN_TARGET"
+        echo "  -> Copied Noto Sans Regular as $DIN_TARGET"
+    else
+        echo "  ERROR: No fallback font available!"
+        exit 1
+    fi
+fi
+
+# --- IMAGES ---
+echo ""
+echo "--- Images ---"
+
+REI_TARGET="$IMAGES_DIR/rei_default.png"
+REI_SOURCE="$EXTRA_IMAGES/rei_default.png"
+
+# Remove old symlink/file
+rm -f "$REI_TARGET"
+
+if [ -f "$REI_SOURCE" ]; then
+    echo "Dashboard image found - linking/copying"
+    # Try symlink first, fall back to copy (Windows compatibility)
+    if ln -s "$REI_SOURCE" "$REI_TARGET" 2>/dev/null; then
+        echo "  -> Linked $REI_TARGET -> $REI_SOURCE"
+    else
+        cp "$REI_SOURCE" "$REI_TARGET"
+        echo "  -> Copied $REI_TARGET (symlinks not supported)"
+    fi
+else
+    echo "Dashboard image not found - will use empty fallback at runtime"
+    # Create a tiny transparent PNG placeholder (1x1 pixel)
+    # This avoids asset not found errors while keeping the build clean
+    printf '\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x01\x00\x00\x00\x01\x08\x06\x00\x00\x00\x1f\x15\xc4\x89\x00\x00\x00\nIDATx\x9cc\x00\x01\x00\x00\x05\x00\x01\r\n-\xb4\x00\x00\x00\x00IEND\xaeB`\x82' > "$REI_TARGET"
+    echo "  -> Created 1x1 transparent placeholder"
+fi
+
+echo ""
+echo "=== Asset preparation complete ==="
+echo "You can now run: flutter build linux"