Design and make a big LED 7-Segment for Arduino

Design and make a big LED 7-Segment for Arduino using BCD to 7segment IC 4511

Parts list:

IC4511

LED (35pcs)

Resisror 120R (7pcs)

Male header pin (6 pin+3 pin)

Connecting wires

Gerber file:
https://drive.google.com/open?id=11R5_IPifnDhEPtdtgeX3StvApPpHDora

Circuit:

IMPORTANT NOTE:
IC4511 has sourcing current=25mA for each segment, I used five parallel Green LEDs for each segment,i test the total current drawing is only 20mA(4mA each LED), but if you want to use another LED color which make the total current drawing more than 25mA for each segment so you have to add switching transistor for each segment.
I chooses Green color LED because draw very very low current and make the circuit simple as possible(No switching transistor needed).

Video: 

Code: 

void setup(){
  pinMode(2, OUTPUT); //A
  pinMode(3, OUTPUT); //B
  pinMode(4, OUTPUT); //C
  pinMode(5, OUTPUT); //D
}

void loop(){
 
  //Number Zero
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  delay(1000);
 
  //Number One
  digitalWrite(2, HIGH);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  delay(1000);

  //Number Two
  digitalWrite(2, LOW);
  digitalWrite(3, HIGH);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  delay(1000);

  //Number Three
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  delay(1000);

  //Number Four
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  delay(1000);

  //Number Five
  digitalWrite(2, HIGH);
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  delay(1000);

  //Number Six
  digitalWrite(2, LOW);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  delay(1000);

  //Number Seven
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  delay(1000);

  //Number Eight
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, HIGH);
  delay(1000);

  //Number Nine
  digitalWrite(2, HIGH);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, HIGH);
  delay(1000);

}

categories : 7-Segment Circuits,arduino,LED projects