MULTI-COLOR LED LIGHT-EMITTING KEYBOARD

摘要

PURPOSE: A multi-color phase LED radiation keyboard is provided to improve the convenience of usage by automatically converting the keys to corresponding key code depending on the computer software program usage situation, and by radiating in color appointed to many groups. CONSTITUTION: A key includes a control signal generation key which generates the control signal. An LED element installed at the keys includes the LED element of a first color which is installed at the keys. A switching circuit controls the radiation of the LED element by an output signal of general purpose input output (GPIO) of micro control unit (MCU). A first switching circuit radiates the LED element of a second color while the control signal generation key is turned on. A second switching circuit radiates the LED element of a first group of the first color while the control signal generation key is turned off.