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How does a traditional infrared remote control work? How does the remote control work?

  Infrared remote control is also infrared remote control, English is Infrared remote control. To understand infrared remote control, you must understand infrared. The visible light to the naked eye is red, orange, yellow, green, cyan, blue, and purple. These lights have different wavelengths, and the red light has the longest wavelength of 0.62 to 0.76 μm. The wavelength outside the red light is the back line. The infrared remote control usually uses infrared light with a wavelength of 0.76 to 1.5 μm to transmit signals. The infrared signal is transmitted by the remote control. The television, set-top box, etc. receive the signal and then execute the command. The infrared signal is emitted by a light-emitting diode inside the remote control.
Hua Yun remote control manufacturer specializing in customized Bluetooth |2.4G| voice, air conditioning, set-top box, infrared remote control.
  The frequency of the infrared remote control is generally 38kHz. The carrier frequency of the infrared remote control will be the same as the frequency used by the receiver. Only in this way can the best effect be achieved. The infrared remote control signal transmission is a point-to-point transmission method, wireless, short distance, and cannot pass through obstacles. However, the infrared remote control does not affect the surrounding environment and will not interfere with other electrical equipment.
  By coding each key and using the output device at the receiving end to form a binary number, this means that each key has a different function. The coding (code value) of each device and the infrared remote control may be different, thereby ensuring that different devices do not interfere with each other. The so-called universal remote control stores all the code values ​​into an infrared remote control to form a huge code value library. When used on different devices, the corresponding code values ​​are called up. The learning remote control is provided with a learning key, and the learning key can be used to copy code values ​​on other remote controls.
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