How to make Ardunio Digital Clock at Home

This is a video about making a homemade 7 Segment Digital Clock. Digital clocks are one of the great invention in the field of science.

Here the Components that you will Require :
1. An Arduino uno.
2. 4 digit  7 segment common anode displays
3. 2 push switches.
4. 1 PCB.
5. 4 Nos 1k ohm resistors.
6. L7805 voltage regulator.

I have used 4 7 segment common anode display to display the digits, 2 push switches , AT-MEGA 328P PU,some wires and an arduino UNO. We can set the time Short  the jumper and pressing the minute or hour key to change the minute or the hour to our need..!




For segment pins!
a to pin 9
b to pin 8
c to pin 7
d to pin 6
e to pin 5
f to pin 4
g to pin 3
dot to pin 2

Remember All a,b,c,d,e,f,g,dot segments of 4 displays are connected together.... and the com of every display i.e 3 and 8 are connected together with the resistors...

For display pins
Display 1 to pin 10
Display 2 to pin 11
Display 3 to pin 12
Display 4 to pin 13

Now the most cool part ... writing and adding the code to the arduino....

Now for the keys
Short  the jumper change the switches mode ...
key 2 and key 3 are hour changing and minute changing switches..

I have attached the code and the time library file .. for calculating the time and displaying it....

Please add the Time Folder in Time.zip, in your Arduino's libraries folder.
eg in my system:
C:\Program Files (X86)\Arduino\libraries

Simatic and all download link: Click Here

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