The traffic light controller design based onsingle chip microcomputerAbstract This design is designed for intersection traffic lights control system, in order to realize the automatic control of the traffic light； System design of 4 kinds of traffic state， and timer displays the time each state
On the basis of the analysis of system function ， choose the with the single chip processor as the core controller to realize the plan
Hardware part includes single chip microcomputer minimum system ， time ， according to traffic status indicator and button control circuit
Each state of the holding time can be set by keyboard
Software adopted the modular design method， distinct， easy to modify
In the Proteus control function of this system are simulated， the simulation using light-emitting diodes
