Epaper Php Script Apr 2026
/** * Generate frame buffer data */ public function generateFramebuffer($image) $buffer = ''; for ($y = 0; $y < $this->height; $y++) for ($x = 0; $x < $this->width; $x++) ($g6 << 5) return $buffer;
private function handleTextDisplay() $text = $_POST['text']; $fontSize = $_POST['font_size'] ?? 24; try $this->display->displayText($text, $fontSize); $_SESSION['message'] = "Text displayed successfully!"; catch (Exception $e) $_SESSION['message'] = "Error: " . $e->getMessage();
// Example usage and web interface class EPaperWebInterface private $display;
public function __construct() $this->display = new EPaperDisplay(800, 480, EPaperDisplay::COLOR_BW); epaper php script
switch ($path) case 'display/image': if ($method === 'POST' && isset($_FILES['image'])) // Handle image upload via API $result = handleImageAPI($display); echo json_encode($result);
// Start session for messages session_start();
public function __construct($width = 800, $height = 480, $colorMode = self::COLOR_BW) $this->width = $width; $this->height = $height; $this->colorMode = $colorMode; $this->rotation = 0; $this->devicePath = '/dev/fb0'; // Framebuffer device /** * Generate frame buffer data */ public
/** * Create a blank image buffer */ public function createBlankImage() $image = imagecreatetruecolor($this->width, $this->height); // Set white background $white = imagecolorallocate($image, 255, 255, 255); imagefill($image, 0, 0, $white); return $image;
// Run the web interface $webInterface = new EPaperWebInterface(); $webInterface->handleRequest(); ?> # Install required PHP packages sudo apt-get install php-gd php-imagick Set permissions for framebuffer sudo chmod 666 /dev/fb0 Create required directories mkdir -p uploads fonts Download a font wget -O fonts/FreeSans.ttf https://github.com/google/fonts/raw/main/apache/opensans/OpenSans-Regular.ttf System Integration Script # /usr/local/bin/epaper_refresh.py #!/usr/bin/env python3 import sys import fcntl import struct import os E-Paper refresh IOCTL command (vendor specific) FBIO_REFRESH = 0x4600
/** * Load image from file */ public function loadImage($path) $extension = strtolower(pathinfo($path, PATHINFO_EXTENSION)); switch($extension) case 'jpg': case 'jpeg': return imagecreatefromjpeg($path); case 'png': return imagecreatefrompng($path); case 'bmp': return imagecreatefrombmp($path); default: throw new Exception("Unsupported image format: $extension"); 'success' : 'error';
/** * Display multiple images in sequence */ public function displaySlideshow($images, $delay = 5) foreach ($images as $imagePath) $image = $this->loadImage($imagePath); $this->display($image); imagedestroy($image); sleep($delay);
break;
public function handleRequest() if ($_SERVER['REQUEST_METHOD'] === 'POST') if (isset($_FILES['image'])) $this->handleImageUpload(); elseif (isset($_POST['text'])) $this->handleTextDisplay(); $this->renderInterface();
private function renderInterface() ?> <!DOCTYPE html> <html> <head> <title>E-Paper Display Controller</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <style> body font-family: Arial, sans-serif; max-width: 800px; margin: 0 auto; padding: 20px; background: #f5f5f5; .container background: white; padding: 30px; border-radius: 10px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); h1 color: #333; border-bottom: 2px solid #4CAF50; padding-bottom: 10px; .section margin-bottom: 30px; padding: 20px; background: #f9f9f9; border-radius: 5px; .section h2 margin-top: 0; color: #555; input, textarea, button padding: 10px; margin: 5px 0; width: 100%; box-sizing: border-box; button background: #4CAF50; color: white; border: none; cursor: pointer; font-size: 16px; button:hover background: #45a049; .message padding: 10px; margin-bottom: 20px; border-radius: 5px; .success background: #d4edda; color: #155724; border: 1px solid #c3e6cb; .error background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; .info background: #e7f3ff; padding: 10px; border-radius: 5px; margin-top: 20px; </style> </head> <body> <div class="container"> <h1>📺 E-Paper Display Controller</h1> <?php if (isset($_SESSION['message'])): ?> <div class="message <?php echo strpos($_SESSION['message'], 'Error') === false ? 'success' : 'error'; ?>"> <?php echo htmlspecialchars($_SESSION['message']); unset($_SESSION['message']); ?> </div> <?php endif; ?> <div class="section"> <h2>Upload Image</h2> <form method="POST" enctype="multipart/form-data"> <input type="file" name="image" accept="image/*" required> <button type="submit">Display Image</button> </form> </div> <div class="section"> <h2>Display Text</h2> <form method="POST"> <textarea name="text" rows="3" placeholder="Enter text to display..." required></textarea> <input type="number" name="font_size" placeholder="Font Size (default: 24)" value="24"> <button type="submit">Display Text</button> </form> </div> <div class="info"> <strong>Display Info:</strong><br> <?php $info = $this->display->getInfo(); echo "Resolution: $info['width']x$info['height']<br>"; echo "Color Mode: " . ($info['color_mode'] == 1 ? "Black/White" : "Color") . "<br>"; echo "Device: $info['device']"; ?> </div> </div> </body> </html> <?php