The chip of the remote control is based on the principle of radio technology.
The radio signal is generated by a tiny circuit in the remote control and transmitted by an antenna.
When the button on the remote control is pressed, the current in the circuit changes, resulting in a specific signal.
The signal is transmitted by the antenna and travels through the air to the receiver in the form of radio waves. The circuit in the receiver recognizes the specific signal from the remote control, decodes the signal through the processor, and then sends the corresponding command to the device being controlled. Therefore, the remote control essentially sends a signal through radio technology to achieve remote control of the device.
The principle of remote control chip is based on radio communication technology and computer technology. The remote control has a miniature circuit board built in, and the radio transmitter on the circuit board sends the control signal to the controlled equipment, such as TV, air conditioning, etc.
These devices have a built-in receiver, through which the signal sent by the remote control is received, and then the signal is converted into a control command, and finally the function of the control device is realized. The principle of the remote control chip is based on the transmission and reception of radio waves, which needs to follow the relevant norms and standards of radio communication to ensure the stability and reliability of communication.
one
The oscillator inside the microprocessor chip IC1 is composed of a high-frequency oscillator through 2 and 3 pins and an external oscillator crystal X to generate a high-frequency oscillator signal (480kHz). The principle is: the remote control converts the signal you want to send into an electric current, changes the current into an infrared light through an infrared transmitter, and then sends it out.
two
The working principle of the remote control chip is that the corresponding electrical code can be analyzed in the internal chip of the remote control, so that the electrical equipment can communicate with each other in use, and the electrical equipment performs the corresponding function after receiving the signal from the remote control, that is, the remote control is realized.