First, we'll discuss what is a SEVEN SEGMENT DISPLAY or SSD.
A Seven-Segment
Display (SSD), or seven-segment indicator, is a form of
electronic display device for displaying decimal numerals that
is an alternative to the more complex dot-matrix displays.
Seven-segment displays are widely used in digital clocks, electronic
meters, and other electronic devices for displaying numerical
information.
Here is the Truth table:
A
|
B
|
C
|
D
|
a
|
b
|
c
|
d
|
e
|
f
|
g
|
0
|
0
|
0
|
0
|
1
|
1
|
1
|
1
|
1
|
1
|
0
|
0
|
0
|
0
|
1
|
0
|
1
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
1
|
0
|
1
|
1
|
0
|
1
|
1
|
0
|
1
|
0
|
0
|
1
|
1
|
1
|
1
|
1
|
1
|
0
|
0
|
1
|
0
|
1
|
0
|
0
|
0
|
1
|
1
|
0
|
0
|
1
|
1
|
0
|
1
|
0
|
1
|
1
|
0
|
1
|
1
|
0
|
1
|
1
|
0
|
1
|
1
|
0
|
1
|
0
|
1
|
1
|
1
|
1
|
1
|
0
|
1
|
1
|
1
|
1
|
1
|
1
|
0
|
0
|
0
|
0
|
1
|
0
|
0
|
0
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
0
|
0
|
1
|
1
|
1
|
1
|
1
|
0
|
1
|
1
|
Then we made a K-map out of this truth table.
Based on the Boolean expressions that we obtained, we constructed this Schematic Diagram.
We constructed the final circuit based on the schematic diagram using SEVEN SEGMENT (ANODE), connecting wires, dip switch and IC's in the breadboard.
and this is now our SEVEN SEGMENT DISPLAY:
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