Migrate MCP and utilities to CircuitPython, including color GIF and volume fixes

2026-06-22 10:13:10 -04:00
parent 2863f21459
commit 8f871e499e
53 changed files with 4239 additions and 108 deletions
@@ -0,0 +1,66 @@
+"""CircuitPython file download utility.
+
+Downloads files over Wi-Fi in chunks to local flash or microSD card storage.
+"""
+
+import os
+from sd_cp import SDCardManager
+
+def download_file(url, dest_filename, session, use_sd=True):
+    """Downloads a file from a URL over the network.
+
+    Args:
+        url (str): Source URL.
+        dest_filename (str): Target filename.
+        session (Session): adafruit_requests Session object.
+        use_sd (bool): Save to microSD card if True, else local flash.
+    """
+    dest_path = dest_filename
+    sd_manager = None
+
+    if use_sd:
+        sd_manager = SDCardManager(mount_point='/sd')
+        if not sd_manager.mount():
+            print("Download Error: Could not mount SD card.")
+            return None
+        dest_path = f"/sd/{dest_filename}"
+
+    print(f"Starting download from: {url} -> {dest_path}")
+
+    try:
+        res = session.get(url)
+    except Exception as e:
+        print(f"HTTP Connection failed: {e}")
+        return None
+
+    if res.status_code != 200:
+        print(f"HTTP Error: Received status code {res.status_code}")
+        res.close()
+        return None
+
+    try:
+        chunk_size = 4096
+        total_downloaded = 0
+
+        with open(dest_path, 'wb') as f:
+            for chunk in res.iter_content(chunk_size):
+                if not chunk:
+                    break
+                f.write(chunk)
+                total_downloaded += len(chunk)
+
+                if total_downloaded % (chunk_size * 25) == 0:
+                    print(f"Downloaded {total_downloaded // 1024} KB...")
+
+        print(f"Download complete! Saved {total_downloaded} bytes to '{dest_path}'.")
+        return dest_path
+
+    except Exception as e:
+        print(f"Error writing to file: {e}")
+        try:
+            os.remove(dest_path)
+        except:
+            pass
+        return None
+    finally:
+        res.close()