Introduction - If you have any usage issues, please Google them yourself
AT89C51 microcontroller-based design of the automatic curtain control system, combined with the 8255, CD, DS12887 chip and the stepper motor design and development, implementation timing and manual curtain down function. This design requires the ability to display the time, timing, and manual control and display curtain curtain down state, and can the system time, rise and fall time setting function. The system uses a control chip AT89C51, curtain control a stepping motor, DS12887 as the system clock, 8255 outside the expansion I/O interface to an external keyboard, LCD display time and the curtains state.