Generic Whdts 0.56" C51 4 Bits Digital Electronic Clock Kit Red Led At89C2051 Chip Diy Kits Solder Practice Learning Kits  (Multicolor)

WHDTS 0.56" C51 4 Bits Digital Electronic Clock Kit Red LED AT89C2051 Chip DIY Kits Solder Practice Learning Kits DIY learning kits for soldering and circuit practice | Equipped with 4 digit 0.56" red LED module which is specially for the digital clock | With AT89C2051 for master chip with the function of Seconds correction; Enabled hourly chime; Twice alarm clock setting | DC5.5*2.1 power port with 3-6V power supply, come along with a 3.5mm USB power cable, plug in the USB charger to use it | For DIY kit, users need to know the basic soldering skills of electronic components. Email us when you need any instructions. Description: AT89C2051-based of four electronic clock kit Supply voltage: 3V ~ 6V PCB Size: 52 x 42mm Function: Seconds correction (for precise School) Switch to every minute independent display interface whole point of time (8-20 o'clock chime can be turned off) Two alarm settings (you can turn off the alarm function) Feature: 0.56 inch special red digital clock for display Import AT89C2051 for master chip 1.2mm thick PCB made from military grade FR-4 board Accurate travel time, travel time error range error -1 to +1 seconds every 24 hours Package included: 1 x Electronic Clock DIY Kits 1 x Manual Kindly Reminder: This produce is DIY kits- not the end product! We don't provide technical assistance please make sure you are familiar with the product before purchasing. Apologize in advance.�Download the material from drive.google.com/open?id=1JOMNnPveEFN3oqbzXZuKXpq9QICQ444x