/** * Get display information */ public function getInfo() return [ 'width' => $this->width, 'height' => $this->height, 'color_mode' => $this->colorMode, 'rotation' => $this->rotation, 'device' => $this->devicePath ];
?> # Update e-paper display every hour with weather data 0 * * * * php /var/www/epaper/fetch_weather.php Update with RSS feed every 30 minutes */30 * * * * php /var/www/epaper/fetch_rss.php Usage Examples // Basic usage $display = new EPaperDisplay(800, 480); $display->displayText("Hello E-Paper!", 48); // Display image $image = $display->loadImage('photo.jpg'); $display->display($image);
// Start session for messages session_start();
/** * Create text display */ public function displayText($text, $fontSize = 24, $fontFile = null) $image = $this->createBlankImage(); // Default font if none specified if (!$fontFile) $fontFile = __DIR__ . '/fonts/FreeSans.ttf'; $black = imagecolorallocate($image, 0, 0, 0); // Calculate text position (center) $bbox = imagettfbbox($fontSize, 0, $fontFile, $text); $textWidth = $bbox[2] - $bbox[0]; $textHeight = $bbox[1] - $bbox[7]; $x = ($this->width - $textWidth) / 2; $y = ($this->height + $textHeight) / 2; imagettftext($image, $fontSize, 0, $x, $y, $black, $fontFile, $text); return $this->display($image);