4-Digit Digital Electronic Clock SCM Digital Clock 4-Digit Digital Clock Kit Electronic Production Kit PartsItem NO.: 4Clock Kit

4-Digit Digital Clock Kit

Product Information:

This product is a 4-digit digital electronic clock kit, which needs to be welded and assembled by itself. It is suitable for electronic enthusiasts and major electronic vocational schools to install and learn. The program of the single-chip computer has been written, and the electronic version of the program will not be provided separately. Power supply: DC3.7V-5.5V.

Special reminder: If it is used for a long time, it is recommended to use DC power supply, because if you use ordinary 3 # 5 batteries, the power consumption is faster, and it is not suitable for long-term use.

Function Introduction:

1. Normal travel time, time division display.

2. The time and time are independently adjustable;

3. Time second correction function.

4. The speed of the clock can be fine-tuned. The 0-9 gear is adjustable, and the default is the 5th gear.

5. Two alarm clocks can be set independently.

6. The prompt function of the whole time can be turned off and on.

7. It is equipped with a battery interface, which can be powered off and left. The battery only needs to be greater than 3V to ensure power failure and running time. Use two No. 5 batteries, three No. 5 batteries, or cell phone batteries.

8. Countdown function, countdown can be realized within 99 minutes, and the countdown end alarm.

9. The stopwatch function can realize the stopwatch function, pause the stopwatch and reset the stopwatch.

10. It can realize the counter function and record the number of keys. The number of external pulses can also be recorded.

Kit Features:

A. Use 0.44-inch clock dedicated red nixie tube for display;

B. Imported AT89C2051 as the main control chip;

C. 1.6mm thick PCB is made of military-grade FR-4 plate, thick plate

D. Not many components, simple installation, high success rate, no debugging

E. The travel time is accurate, and the travel time error range is about 3 seconds per month.