For those starting out in Arduino, there are tons of resources to get better acquainted with the community and the types of projects you can tinker with.

This paper shredder bin monitor is an easy Arduino project for beginners to get into. It uses an ultrasonic sensor, which is placed inside the bin, to detect the trash level.

11 Arduino projects that require major hacking skills—or a bit of insanity Lawn care, Daleks, bug zappers prove the Arduino thrives as much as Raspberry Pi.