STOPWATCH/COUNTER USING 4-DIGIT 7SEGMENT LCD DISPLAY + ARDUINO UNO

In this example we will use a 4-digit 7-segment display to make a stopwatch, you can see the number increases by one per second on the 4-digit 7-segment display.

HARDWARE NEEDED:
4-DIGIT 7 SEGMENT LCD DISPLAY
ARDUINO UNO
JUMPER WIRES
BREADBOARD

CONNECTION
LCD ARDUINO DIGITAL I/O
a = 2;
b = 3;
c = 4;
d = 5;
e = 12;
f = 7;
g = 8;
p = 13;
d4 = 9;
d3 = 10;
d2 = 11;
d1 = 6;

NOTE: INSTALL TIMER-ONE LIBRARY INTO ARDUINO BEFORE UPLOADING CODE
Timer one Zip file and Source code can be found in link below:

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"Steffen Daum - Goodbye My Dear" is under a Creative Commons license (CC-BY 3.0)
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How to install timer one into arduino?