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AT89C2051 C51 Digital LED Display 4 Bits Electronic Clock Production Suite DIY Kit 0.56 Inch Red Two Alarm

AT89C2051 C51 Digital LED Display 4 Bits Electronic Clock Production Suite DIY Kit 0.56 Inch Red Two Alarm

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Prix habituel $2.01 USD
Prix habituel $3.01 USD Prix promotionnel $2.01 USD
Promotion Épuisé
Package : SMD
is_customized : Yes
DIY Rotating Digital LED Display Module
Operating Temperature : 1
Dissipation Power : 1
Supply Voltage : 1
Condition : New
Type : Voltage Regulator




Features:



AT89C2051-based of four electronic clock kit

Kit Model: YSZ-4

Supply voltage: 3V-6V

PCB Size: 52mm * wide 42mm



Function:

1. Seconds correction (for precise School)

2. Switch to every minute independent display interface

3. whole point of time (8-20 o\'clock chime can be turned off)

4. Two alarm settings (you can turn off the alarm function)



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


 

100UF



1



C4



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


 






 














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