add bed cooler project.

scripts/create_update_package.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+import argparse
+import struct
+from pathlib import Path
+
+MAGIC = b"TSLUPD1\0"
+HEADER_SIZE = 32
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Create a combined ESP32 update package.")
+    parser.add_argument("--firmware", default=".pio/build/seeed_xiao_esp32c3/firmware.bin")
+    parser.add_argument("--filesystem", default=".pio/build/seeed_xiao_esp32c3/littlefs.bin")
+    parser.add_argument("--output", default=".pio/build/seeed_xiao_esp32c3/update.tslpkg")
+    args = parser.parse_args()
+
+    firmware_path = Path(args.firmware)
+    filesystem_path = Path(args.filesystem)
+    output_path = Path(args.output)
+
+    firmware = firmware_path.read_bytes()
+    filesystem = filesystem_path.read_bytes()
+    output_path.parent.mkdir(parents=True, exist_ok=True)
+
+    header = MAGIC + struct.pack("<III", HEADER_SIZE, len(filesystem), len(firmware)) + bytes(12)
+    output_path.write_bytes(header + filesystem + firmware)
+
+    print(f"Created {output_path}")
+    print(f"  filesystem: {filesystem_path} ({len(filesystem)} bytes)")
+    print(f"  firmware:   {firmware_path} ({len(firmware)} bytes)")
+    print(f"  total:      {output_path.stat().st_size} bytes")
+
+
+if __name__ == "__main__":
+    main()