The knowledge of the code library for a universal remote control mainly includes its definition, functions, usage methods, and technical details

Definition and Function

The universal remote control code library is a database that stores infrared remote control signals for various electrical devices. It supports various domestic and foreign brands of air conditioners, televisions, set-top boxes DVD、 Control of devices such as electric fans and air purifiers. Through this database, users can easily find the remote control codes for corresponding devices and control various electrical appliances
usage method

Automatic search function: Most universal remote controls are equipped with an automatic search function. Users only need to turn on the TV or appliance, hold down the settings button on the remote control until the indicator light is on, then press a button on the TV (usually the power button), the indicator light flashes, and release it. The universal remote control will automatically search and store the corresponding code
Manual code input: Users can also search for the three digit code of the corresponding device from the code table, and then follow the steps in the manual to enter the code and complete the binding

Technical Details

The technical details of the code library for the universal remote control include support for infrared encoding protocols and transmission of infrared signals. Different brands of electrical equipment have different infrared encoding protocols, and universal remote controllers need to decode these protocols to emit the correct infrared signals. For example, IRext is an open-source infrared code library that provides infrared protocols for various appliances. Developers can use it to decode binary code and emit infrared signals based on the decoded data