Public info about the author: Jiang2005
microcontroller AT89C52 interfaces a DS1302 trickle-charge timekeeping that provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. Date and time is shown on a LCD 16×2 display.
SPICE simulatin of light effecs system control. The 8051 microcontroller drives 16 leds/lamps generating 9 different light games. A button changes between the different mode effects, which number is shown on a display, and other two buttons, speed up or decelerate the movement of the light effects.