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 ...

Color sensing (as well as detecting empty spaces) 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 ...

a type of infrared sensor that converts light into electrical signals. Photodiodes are one of the most common sensors. They are used in TV and AC remotes, heart rate monitoring devices ...