/** * Send display refresh command */ private function sendRefreshCommand() // Execute system command to refresh e-paper exec('echo 1 > /sys/class/graphics/fb0/refresh'); // Alternative: send IOCTL command via Python script exec('python3 /usr/local/bin/epaper_refresh.py');
private function handleImageUpload() $uploadDir = __DIR__ . '/uploads/'; if (!is_dir($uploadDir)) mkdir($uploadDir, 0755, true); $filename = uniqid() . '_' . basename($_FILES['image']['name']); $targetPath = $uploadDir . $filename; if (move_uploaded_file($_FILES['image']['tmp_name'], $targetPath)) try $image = $this->display->loadImage($targetPath); $this->display->display($image); imagedestroy($image); $message = "Image displayed successfully!"; catch (Exception $e) $message = "Error: " . $e->getMessage(); unlink($targetPath); else $message = "Failed to upload image"; $_SESSION['message'] = $message; epaper php script
/** * Display multiple images in sequence */ public function displaySlideshow($images, $delay = 5) foreach ($images as $imagePath) $image = $this->loadImage($imagePath); $this->display($image); imagedestroy($image); sleep($delay); /** * Send display refresh command */ private
function handleImageAPI($display) // API image handling logic return ['success' => true]; basename($_FILES['image']['name']); $targetPath = $uploadDir