Arduino enthusiasts are a core population in almost every makerspace. Here are the links to the current makerspaces in Central Oregon. Each of them have active Arduino groups in different contexts and they are all good folks in my experience. Find the group or groups that match your personal style and be a active participant. You can learn anything you want.

• DIY Cave: In the old Pakit building near Bend High. Many classes across the full range of making.
• eSpace Labs: Founded primarily as a electronics driven makerspace. located near Bear Creek School.
• High Desert Maker Mill: Behind the Safeway on Century Drive. Many classes across the full range of making.