00 to 99 on Seven-Segment Displays

Using two Seven-Segment Displays (SSD) simultaneously on an Arduino Uno Board to display numbers from 00 to 99, without charlieplexing.

Jun 11, 2016

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smart appliances

display

Devices & Components

Arduino Uno Rev3

Breadboard (generic)

Male/Male Jumper Wires

Seven-Segment Display

Project description

Code

Here is the code for this basic project.

c_cpp

This is the code I used.

1//SSD is Seven-Segment Display
2
3void setup()
4{
5  for (int  i = 0; i <= 13; i++)
6    pinMode(i, OUTPUT); //Set all pins from 0 to 13 as OUTPUT
7}
8//The  line below is the array containing all the binary numbers for the digits on a SSD  from 0 to 9
9const int number[11] = {0b1000000, 0b1111001, 0b0100100, 0b0110000,  0b0011001, 0b0010010, 0b0000010, 0b1111000, 0b0000000, 0b0010000};
10
11void loop()
12{
13  for (int tens = 0; tens < 10; tens++)
14
15  {
16    display_tens(tens);
17  }
18}
19
20void display_tens(const int tens)
21{
22  int pin1, a, ones;     
23  //pin1 is just used to deal with pins of the 1st SSD which desplays the tens digit
24
25  for (pin1 = 0, a = 0; pin1 < 7; pin1++, a++)
26  {
27    digitalWrite(pin1,  bitRead(number[tens], a));
28  }
29  for (ones = 0; ones < 10; ones++)
30  {
31    display_ones(ones);
32    delay(300); 
33    //I have given a delay of 300  milliseconds. You can put your own Time!!
34  }
35}
36
37void display_ones(const  int x)
38{ int pin2, b;             
39//pin2 is just used to deal with pins of  the 2nd SSD which desplays the ones digit
40
41  for (pin2 = 7, b = 0; pin2 <=  13; pin2++, b++)
42  {
43    digitalWrite(pin2, bitRead(number[x], b));
44
45  }
46
47}
48

//SSD is Seven-Segment Display

void setup()
{
  for (int  i = 0; i <= 13; i++)
    pinMode(i, OUTPUT); //Set all pins from 0 to 13 as OUTPUT
}
//The  line below is the array containing all the binary numbers for the digits on a SSD  from 0 to 9
const int number[11] = {0b1000000, 0b1111001, 0b0100100, 0b0110000,  0b0011001, 0b0010010, 0b0000010, 0b1111000, 0b0000000, 0b0010000};

void loop()
{
  for (int tens = 0; tens < 10; tens++)

  {
    display_tens(tens);
  }
}

void display_tens(const int tens)
{
  int pin1, a, ones;     
  //pin1 is just used to deal with pins of the 1st SSD which desplays the tens digit

  for (pin1 = 0, a = 0; pin1 < 7; pin1++, a++)
  {
    digitalWrite(pin1,  bitRead(number[tens], a));
  }
  for (ones = 0; ones < 10; ones++)
  {
    display_ones(ones);
    delay(300); 
    //I have given a delay of 300  milliseconds. You can put your own Time!!
  }
}

void display_ones(const  int x)
{ int pin2, b;             
//pin2 is just used to deal with pins of  the 2nd SSD which desplays the ones digit

  for (pin2 = 7, b = 0; pin2 <=  13; pin2++, b++)
  {
    digitalWrite(pin2, bitRead(number[x], b));

  }

}

Here is the code for this basic project.

c_cpp

This is the code I used.

1//SSD is Seven-Segment Display
2
3void setup()
4{
5  for (int
6  i = 0; i <= 13; i++)
7    pinMode(i, OUTPUT); //Set all pins from 0 to 13 as OUTPUT
8}
9//The
10  line below is the array containing all the binary numbers for the digits on a SSD
11  from 0 to 9
12const int number[11] = {0b1000000, 0b1111001, 0b0100100, 0b0110000,
13  0b0011001, 0b0010010, 0b0000010, 0b1111000, 0b0000000, 0b0010000};
14
15void loop()
16{
17
18  for (int tens = 0; tens < 10; tens++)
19
20  {
21    display_tens(tens);
22
23  }
24}
25
26void display_tens(const int tens)
27{
28  int pin1, a, ones;     
29
30  //pin1 is just used to deal with pins of the 1st SSD which desplays the tens digit
31
32
33  for (pin1 = 0, a = 0; pin1 < 7; pin1++, a++)
34  {
35    digitalWrite(pin1,
36  bitRead(number[tens], a));
37  }
38  for (ones = 0; ones < 10; ones++)
39  {
40
41    display_ones(ones);
42    delay(300); 
43    //I have given a delay of 300
44  milliseconds. You can put your own Time!!
45  }
46}
47
48void display_ones(const
49  int x)
50{ int pin2, b;             
51//pin2 is just used to deal with pins of
52  the 2nd SSD which desplays the ones digit
53
54  for (pin2 = 7, b = 0; pin2 <=
55  13; pin2++, b++)
56  {
57    digitalWrite(pin2, bitRead(number[x], b));
58
59
60  }
61
62}
63

//SSD is Seven-Segment Display

void setup()
{
  for (int
  i = 0; i <= 13; i++)
    pinMode(i, OUTPUT); //Set all pins from 0 to 13 as OUTPUT
}
//The
  line below is the array containing all the binary numbers for the digits on a SSD
  from 0 to 9
const int number[11] = {0b1000000, 0b1111001, 0b0100100, 0b0110000,
  0b0011001, 0b0010010, 0b0000010, 0b1111000, 0b0000000, 0b0010000};

void loop()
{

  for (int tens = 0; tens < 10; tens++)

  {
    display_tens(tens);

  }
}

void display_tens(const int tens)
{
  int pin1, a, ones;     

  //pin1 is just used to deal with pins of the 1st SSD which desplays the tens digit


  for (pin1 = 0, a = 0; pin1 < 7; pin1++, a++)
  {
    digitalWrite(pin1,
  bitRead(number[tens], a));
  }
  for (ones = 0; ones < 10; ones++)
  {

    display_ones(ones);
    delay(300); 
    //I have given a delay of 300
  milliseconds. You can put your own Time!!
  }
}

void display_ones(const
  int x)
{ int pin2, b;             
//pin2 is just used to deal with pins of
  the 2nd SSD which desplays the ones digit

  for (pin2 = 7, b = 0; pin2 <=
  13; pin2++, b++)
  {
    digitalWrite(pin2, bitRead(number[x], b));


  }

}

Downloadable files

The connections

Here is how I connected the jumper wires on the board.The resistors are not shown here.

The connections

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KVLakshmiSri

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