settled on IR-based sensors commonly used in line-following robots. You can watch the clock in action in the video embedded below just under the page break. We recommend giving it a look ...

Each of the four strings has a break-beam detection circuit, and a single distance sensor decides where the finger is along the fretboard. Another great thing about this backpack-sized bass is ...

An IR sensor is located near the TV and wired to the receiver, which can be many feet away in the equipment rack. The receiver has an amplifier and an "IR blaster" that showers IR signals to all ...