Month: March 2019

Infrared is a wireless communication method that can transmit wireless data. Since its invention in 1974, it has been widely used, such as an infrared mouse, infrared printer, infrared keyboard and so on. Infrared characteristics: Infrared transmission is a point-to-point transmission method. Wireless, cannot be too far away, must be aligned, and there must be no obstacles in the middle, that is, it cannot pass through the wall, and it is almost impossible to control the progress of information transmission; IrDA Already a set of standards, IR receiving/ transmitting components are also standardized products.