Wired keyboard: The rubber ball is driven to the grating wheel and the LED and phototransistor transistor pulse signal sensor. The wired keyboard technology can convert the keyboard on the X or Y axis, push buttons or boost the information to a wireless signal and send it to the host. Wired keyboards are a very common computer input standard: infrared scattered light spots illuminate particles with photo-electric sensors of light-emitting semiconductors and light source pulse signal sensors. The characteristics of the wired keyboard determine how it works. Use the wired keyboard to position the cursor on the current screen and manipulate the screen elements of the location through the keys and wheel devices.
The characteristics of the wired keyboard determine its working principle. The wired keyboard is divided into a mechanical keyboard and an optical keyboard according to its working principle. The wired keyboard keyboard is mainly composed of a ball, a roller and a grating signal sensor. When you operate the wired keyboard, the rotation of the drive ball, the ball and the drive roller rotate, and the grating signal is mounted on the roller end of the raster signal sensor. The changes in the vertical and horizontal displacement of the wired keyboard are then processed and converted by a computer program to control the cursor movement arrows on the screen.