You might have to break out that soldering iron and tack in a lead. If you can get the schematics or look really carefully, you should be able to determine the unused pins. From here it looks like pins D0-D7 look free.
You might have to break out that soldering iron and tack in a lead. If you can get the schematics or look really carefully, you should be able to determine the unused pins. From here it looks like pins D0-D7 look free.