this a gear indicator that can be easily fitted onto a vehicle which can display the gear on a LCD.-this is a gear indicator that can be easily fitted onto a vehicle which can display the gear on a LCD.

交通信号灯的软件设计，通过程序控制89C51单片机的定时器/计数器实现交通指示功能-Traffic signal software design, implementation, program control traffic indicator 89C51 microcontroller timer/counter