Aoicrie 6-Digit DIY Digital Electronic Clock Kit AT89C2051 Chip Alarm Clock Kit PCB Soldering Practice Learning Kits

Product description This DIY assemble kits is equipped with 6 digits LED module, it's fun to build and also help you learn more professional knowledge about electronics. 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. High quality PCB, has clearly marked the electronics components, even beginners can easily solder successfully. Specifications: Operating voltage: DC 7V-12V (typical applications is 9V). PCB Board Size: 3.68"x1.96"x0.05" (L*W*T) 6 Functions: Seconds Correction, Countdown Clock, Stopwatch, Counter, Hourly Chime and Alarm Clock. Warm tips: Please make sure all components in right direction and right place; and check whether pseudo and float welding, this is very important in practicing and testing. Before soldering the LEDs, it’s recommended to use a multimeter to check if there are any LEDs that are not bright. Package includes: 1 x 6-Digit Digital Clock Kits