1. Robotics: Arduino boards are commonly used to create robots and other interactive machines.
2. Home Automation: Arduino boards can be used to control electrical appliances and other devices in a home environment.
3. Wearable Electronics: Arduino boards are used to create interactive clothing and accessories.
4. Art Installations: Arduino boards can be used to create interactive art installations.
5. 3D Printing: Arduino boards can be used to control 3D printers.
6. Musical Instruments: Arduino boards are used to create electronic musical instruments.
7. Automotive: Arduino boards can be used to create custom automotive electronics.
8. Internet of Things (IoT): Arduino boards are used to create connected devices for the IoT.
9. Educational Projects: Arduino boards are used in schools and universities for educational projects.