There is a driver available if you click on "How to Pair" on the bottom left of Blockly. If you still can't connect with the driver installed, make sure you do the following:
- Check that you are using the USB cable that came with CoDrone Mini or any data USB cable
- Try another port on your device
- Try disconnecting other devices that may be connected to your computer
- Disconnect and reconnect drone and remote
Let us know if this resolves the issue.