Introduction - If you have any usage issues, please Google them yourself
Through the use of STC experimental board, the design and implementation of alarm clock function. The use of UART serial communication sent to the single-chip instruction, both set the alarm time, the alarm set time in the digital tube display four digital tube lights, four for the current time, the current time can be adjusted by the ADC keyboard four buttons, respectively, when the small hours +, -, + - minutes, minutes. Finally, when the current time reaches the set time of the alarm clock, the LED light blinks at the rate of 0.5 seconds until the current time skips the setting time of the alarm clock.