1. It's infrared sensitive. 2. Universal remote control usually uses infrared technology for signal transmission.
Infrared is an electromagnetic wave with a high frequency and short wavelength that can travel through the air. The universal remote control controls the electrical equipment by transmitting infrared signals, when the infrared signal is received and decoded by the device, the device will perform the corresponding operation. 3. In addition to infrared, there are other remote control technologies, such as radio frequency (RF) and Bluetooth.
Different remote controls use different technologies to achieve signal transmission, infrared remote controls are more common in home appliance control, and Bluetooth remote controls are used more in some smart devices.
With the continuous development of technology, the induction method of the remote control is also constantly innovative and improved.
Yes, universal remote control is usually through infrared sensing to communicate with electronic devices. It uses an infrared transmitter to send specific infrared signals, which are then received and decoded by an infrared receiver on the device to achieve control of the device. Infrared has the characteristics of strong penetration and long transmission distance, so it is widely used in remote control technology. Through infrared sensing, the universal remote control can control TV, air conditioning, audio and other household appliances, providing a more convenient operating experience.
The universal remote control refers to a wireless transmitting and receiving device, which can decode various remote control infrared signals, and can store the received infrared signals, and can transmit infrared information again. It is mainly composed of microprocessor integrated chip, crystal oscillator, amplifier transistor and other components.