1.Description:
   This kit uses the STC11FO4E microcontroller, which is a single-clock/machine cycle (1T) microcontroller produced by STC. This microcontroller is compatible with the instruction set of traditional 8051 microcontrollers but is 8-12 times faster than traditional 8051 microcontrollers. It also includes an independent baud rate generator, eliminating the need for a timer.

2.Parameter:
  1>.Power supply: DC 5V
  2>.Work Temperature:-25℃~85℃
  3>.Work Humidity:5%~95%RH
  4>.Size: 79*70mm

3.Button Functions:
  1>.S1: Modify time and alarm, enter setup mode.
  2>.S2: Select the position to be modified, enter setup mode.
  3>.S3: Short press: Switch between hour-minute display and minute-second display, and exit setup.
         Long press (approximately 3 seconds): Reset time to 0:00:00, reset alarm to 0:00:00, and turn off the alarm.

4>.Setup Mode:
  1>.Press S1 or S2 to enter setup, press S3 to exit setup.
  2>.The first round is for time setting, the second round is for alarm setting (only hours and minutes can be set for the alarm), and the third round is for alarm switch setting (OFF to turn off the alarm, on to turn on the alarm).
  3>.Setup Sequence:
    (Time) Set the ones digit of minutes.
    (Time) Set the tens digit of minutes.
    (Time) Set the ones digit of hours.
    (Time) Set the tens digit of hours.
    (Alarm) Set the ones digit of minutes.
    (Alarm) Set the tens digit of minutes.
    (Alarm) Set the ones digit of hours.
    (Alarm) Set the tens digit of hours.
    (Alarm switch) Set the alarm switch to OFF or on.
    (Time) Set the ones digit of minutes.