Introduction - If you have any usage issues, please Google them yourself
The project was designed with six digital tube display circuit, in the design of six LED display, in order to simplify the circuit, reduce costs, dynamic display mode, 6 LED displays share one 8-bit I/O, 6 Wei LED Digital Choice of line pipe by the corresponding P2.0- P2.5 control, whereas the corresponding segment of its alignment parallel together by an 8-bit I/O port control, that is, P0. Decode display circuit will be "time", "sub", "seconds" counter output state by the display decoder decoding, through the six LED seven-segment display is displayed. To achieve timing circuit timing system according to the output of the state generated by a pulse signal, and then to trigger generator to achieve the alarm buzzer. The school when the circuit is used to "time", "sub", "seconds" display figures proofreading adjusted. Compressed file in the simulation files can be used Proteus view