Seven Segment Display board

Seven Segment Display board

Introduction

7 segment displays are used for displaying numbers; they are useful when there is a need for counting like applications in the projects.

7 Segment board contains 4 displays and it can be interfaced to any port using the FRC cable provided with the kit. It needs two ports for operating the board, one for selection and another for segment control.

Seven Segment Board

Seven Segment Board

Operation

Seven segment display board contains 7 segments and a decimal point. Each data port represents a segment in the display. The segments are controlled through the firmware. The pins are configured in active low. The first pin represents A, second pin represents B and so on.

Display codes

DigitData Port – J3

0

11000000

1

11111001

2

10100100

3

10110000

4

10011001

5

10010010

6

10000010

7

11111000

8

10000000

9

10010000

Data Port

J1

1

2

3

4

5

6

7

8

Pin Name

A

B

C

D

E

F

G

DP

J3 pins are active low. That means, grounding the bit will enable the segment LED and giving a High signal will disable the segment.

Control Port

J2

1

2

3

4

5

6

7

8

Pin Name

U1

U2

U3

U4

NC

NC

NC

NC

J2 pins are active high. Giving High on the bit will enable the seven segment.

NC – No Connection

Power header

There is a power header available on this board, J6. This can be used to test the display.

J6

1

2

3

4

Pin Name

VCC

VCC

GND

GND

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