At89C2051 นาฬิกาอิเล็กทรอนิกส์ดิจิตอล 4 บิต DIY Kit

​AT89C2051 Digital 4 Bits Electronic Clock Electronic Production Suite DIY Kit

Function:
1. Seconds correction (for precise School)
2. Switch to every minute independent display interface
3. whole point of time (8-20 oclock chime can be turned off)
4. Two alarm settings (you can turn off the alarm function)
5. PCB size: 52mm long * 42mm wide
6. Power supply voltage: 3V-5V （Recommended: 5V ）

Kit Features:
A. 0.56 inch special red digital clock for display;
B. Import AT89C2051 for master chip;
C.1.2mm thick PCB made from military grade FR-4 board;
D. accurate travel time travel time error range error -1 to +1 seconds every 24 hours.

setting LED flashes the last one the last one by S2 plus one between 0 and 9 cycles digital the greater the faster the clock press S1 to confirm the setting and return to the clock display. Set.

List:

name specification Quantity serial number

0.25w resistance 4.7K 5 R1.R3-R6

Exclusion 470*9 1 R2

electrolytic capacitor 10uf 1 C1

ceramic capacitor 30p 2 C2 C3
104 1 C5

diode IN4007 2 D1 D2

Nixie tube 0.4 1 DS1

crystal oscillator 12HMz 1 T1

key switch 6*6 2 S1 S2

audion 8550 1 Q1

singlechip AT89C2051 1 V1

socket DIP20 1

buzzer 5V 1 V2

terminal KF126-2P 1 J1

circuit board 1

Note: This kit needs to be soldered by yourself!

Package Included:
1pcs * AT89C2051 Digital 4 Bits Electronic Clock



Before purchase:
1. All the goods are in stock and we will dispatch immediately if we receive the order.
2.Please read the item description if you have any question do not hesitate to contact us.

Shipment：
1.1-2 days to ship(except for the pro-order item)

After purchase:
1.If you are satisfied，please give us 5 stars praise.
2.Please contact us before you are going to give us bad review. We are helpful and will solve the problems.
if you receive a defect itemplease contact us at once with item picture or video



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