With their cheap price tags, massive I/O provisions, and low power consumption, microcontrollers like the uber-popular ...

It's also complemented with a host of online resources that even without the official Projects Book from Arduino ... re only using one shredder. Aside from the Uno and the ultrasonic sensor ...

Enclosed are the ultrasonic ... sensor and an LED indicating the power status. On the other side of the CAT5 cable can be found an Arduino compatible board with an XBee shield and a 9V battery ...