NOTE:
This kit uses the internal crystal oscillator clock of the single-chip microcomputer for timing, and the time will have a certain error, which is not suitable for long-term use.

This product is a 4 -digit digital electronic clock kit, which needs to be welded and assembled by yourself. It is suitable for electronic enthusiasts and major electronic vocational technical schools for installation and learning. The program of the single-chip microcomputer has been admitted, and an electronic version of the program is provided .


Special note : such as prolonged use, it is recommended to use a DC power supply is appropriate, since if the ordinary . 3 Section 5 cell number, then power consumption is relatively fast, this kit is used in the MCU crystal clock timing, there will be some time Error, not suitable for long-term use.

Function introduction:

1. Normal running time, hour and minute display (the middle two points flash).
2. Hours and minutes are independently adjustable;
3. One alarm clock, you can set the switch of the alarm clock.
4. Hourly point reminder function, and can turn off the whole point reminder function.
5. Equipped with a battery interface, three . 5 -cell batteries, or cell phone battery can.
6. Countdown function, can count down at any time within 99 minutes, and alarm when the countdown ends.
7. Stopwatch function, can realize stopwatch function, can pause the stopwatch.