Sometimes, the best Arduino projects are the most ridiculous. Case in point, this motion-detecting squirt gun. The idea is simple: when it detects motion, the spray gun activates.

As many Arduino enthusiasts will tell you, they have a million ideas for projects but haven't completed nearly as many as they want. Here are some of the best Arduino projects we have found.

The best way to learn Arduino, as with any other hands-on skill, is to practice creating a project. You can find a host of ideas online, but the best resource to find Arduino projects to try is ...

If you really want to show off your DIY skills, Arduino projects can be useful, beautiful, and impressive. Check out some of our favorites.