A TV remote primarily connects to a TV using infrared (IR) light.
Here's a breakdown of how it works:
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Infrared (IR) Light: TV remotes use a specific type of light called infrared light, which is invisible to the human eye.
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LED Transmitter: The remote control contains a small light-emitting diode (LED) that acts as a transmitter. When you press a button on the remote, the LED rapidly flashes a specific pattern of infrared light.
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Encoded Message: The pattern of flashes represents a specific command, like "power on," "volume up," or "change channel." Think of it as Morse code, but using light instead of sound.
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IR Receiver on the TV: The TV has an infrared receiver that detects the IR light emitted by the remote.
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Decoding the Signal: The TV's receiver decodes the pattern of light flashes and translates it into the corresponding command.
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Executing the Command: The TV then executes the command, such as turning up the volume or changing the channel.
In summary, the TV remote sends commands to the TV by flashing a coded message of infrared light, which the TV's receiver interprets and acts upon.