TV and Radio

How does an infrared remote control work?
Answered by HowStuffWorks
  • HowStuffWorks


  1. An infrared remote control, or IR remote, uses pulses of light to control electronics. The light pulses represent specific binary codes that are set up to correspond to various commands on electronic devices. Your TV, VCR or other device decodes the binary command from its IR receiver. Once the binary information is decoded, the device's microprocessor can use the information to carry out the command it was told to perform.

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