4 Bits Digital LED Electronic Clock DIY Kits PCB Soldering Practice Learning Board AT89C2051 and Components DC 9V - 12V

1.This DIY assemble kits is equipped with 6 digits or 4 digits LED module, it's fun to build and also help you learn more professional knowledge about electronics.

2.It is programmed AT89C2051 MCU chip, precise time display, 24 hours format, supporting seconds correction, countdown clock, stopwatch, counter, hourly chime and alarm clock functions.

3.High quality PCB, has clearly marked the electronics components, even beginners can easily solder successfully.

4.Before soldering the LEDs, it’s recommended to use a multimeter to check if there are any LEDs that are not bright.

5.This product is DIY kits, not the end product! This Soldering Project requires basic electronic