មេរៀនទី១៧៖​ 7 Segment one Digit Cathod Type (Simple Code)

7 Segment one Digit Cathode Type

 

1. Objective

The objective is talk about, Use digital output to display 7 segment one digit cathode type.

2. Requirement

• Arduino Uno x1
• USB Cable x1 (No need in simulation)
• Breadboard x1 (No need in simulation)
• 7 Segment one digit x1 (Cathode Type)
  
• Resistor 220Ohm x1
  
• Electronic Wire (No need in simulation) 

 

3. Build Circuit

Build circuit like Figure 1. 

 

Segment Pin A to Arduino pin 13 

Segment Pin B to Arduino pin 12

Segment Pin C to Arduino pin 11 

Segment Pin D to Arduino pin 10

Segment Pin E to Arduino pin 9

Segment Pin F to Arduino pin 8

Segment Pin G to Arduino pin 7

 

*Note you must find pin A to G in real 7 segment because the pin are not order as simulation.

Figure 1. Arduino Connection

4. Coding

// by Tann Thona

// 7 Segment Cathod Type

int pinA = 13;
int pinB = 12;
int pinC = 11;
int pinD = 10;
int pinE = 9;
int pinF = 8;
int pinG = 7;

void setup() {
  // put your setup code here, to run once:
  pinMode(pinA, OUTPUT);
  pinMode(pinB, OUTPUT);
  pinMode(pinC, OUTPUT);
  pinMode(pinD, OUTPUT);
  pinMode(pinE, OUTPUT);
  pinMode(pinF, OUTPUT);
  pinMode(pinG, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:

  // Number 0
  digitalWrite(pinA, 1);
  digitalWrite(pinB, 1);
  digitalWrite(pinC, 1);
  digitalWrite(pinD, 1);
  digitalWrite(pinE, 1);
  digitalWrite(pinF, 1);
  digitalWrite(pinG, 0);
  delay(100);

  // Number 1
  digitalWrite(pinA, 0);
  digitalWrite(pinB, 1);
  digitalWrite(pinC, 1);
  digitalWrite(pinD, 0);
  digitalWrite(pinE, 0);
  digitalWrite(pinF, 0);
  digitalWrite(pinG, 0);
  delay(100);

   // Number 2
  digitalWrite(pinA, 1);
  digitalWrite(pinB, 1);
  digitalWrite(pinC, 0);
  digitalWrite(pinD, 1);
  digitalWrite(pinE, 1);
  digitalWrite(pinF, 0);
  digitalWrite(pinG, 1);
  delay(100);

  // Number 3
  digitalWrite(pinA, 1);
  digitalWrite(pinB, 1);
  digitalWrite(pinC, 1);
  digitalWrite(pinD, 1);
  digitalWrite(pinE, 0);
  digitalWrite(pinF, 0);
  digitalWrite(pinG, 1);
  delay(100);

  // Number 4
  digitalWrite(pinA, 0);
  digitalWrite(pinB, 1);
  digitalWrite(pinC, 1);
  digitalWrite(pinD, 0);
  digitalWrite(pinE, 0);
  digitalWrite(pinF, 1);
  digitalWrite(pinG, 1);
  delay(100);

  // Number 5
  digitalWrite(pinA, 1);
  digitalWrite(pinB, 0);
  digitalWrite(pinC, 1);
  digitalWrite(pinD, 1);
  digitalWrite(pinE, 0);
  digitalWrite(pinF, 1);
  digitalWrite(pinG, 1);
  delay(100);

  // Number 6
  digitalWrite(pinA, 1);
  digitalWrite(pinB, 0);
  digitalWrite(pinC, 1);
  digitalWrite(pinD, 1);
  digitalWrite(pinE, 1);
  digitalWrite(pinF, 1);
  digitalWrite(pinG, 1);
  delay(100);

  // Number 7
  digitalWrite(pinA, 1);
  digitalWrite(pinB, 1);
  digitalWrite(pinC, 1);
  digitalWrite(pinD, 0);
  digitalWrite(pinE, 0);
  digitalWrite(pinF, 0);
  digitalWrite(pinG, 0);
  delay(100);

  // Number 8
  digitalWrite(pinA, 1);
  digitalWrite(pinB, 1);
  digitalWrite(pinC, 1);
  digitalWrite(pinD, 1);
  digitalWrite(pinE, 1);
  digitalWrite(pinF, 1);
  digitalWrite(pinG, 1);
  delay(100);

  // Number 9
  digitalWrite(pinA, 1);
  digitalWrite(pinB, 1);
  digitalWrite(pinC, 1);
  digitalWrite(pinD, 1);
  digitalWrite(pinE, 0);
  digitalWrite(pinF, 1);
  digitalWrite(pinG, 1);
  delay(100);
}
 

Click Here to Download Code and Proteus Simulation File 

 

4. Result

According to code above,7 segment is display with count up number from 0 to 9 in loop.

Watch Video Explain in Khmer

YouTube: ICT4D-KH

Copyright By Tann Thona