Seven Segment Dengan Push Button Menggunakan Arduino UNO - Counter Down

Bismillahirrahmanirrahim

Assalamu’alaikum warahmatullahi wabarakatuh

Pada kesempatan ini saya akan membuat project Seven Segment Counter Down Dengan Push Button Menggunakan Arduino UNO. Disini saya akan menggunakan pin 2 sampai 9 sebagai output dan pin 13 sebagai input pada Arduino UNO untuk Menyalakan Seven Segment. Serta saya akan menjelaskan mulai dari hardware dan software serta cara kerjanya, agar para pembaca dapat mengerti dengan apa yang saya sampaikan. Aamiin.

Alat dan Bahan

1 Buah Seven Segmen (Common Anode)
1 Buah Push Button
2 Buah Resistor 220Ω (Ohm) “untuk resistor di push button, dapat up to 1KΩ (Ohm)”
Kabel Jumper secukupnya
1 Buah Protoboard
1 Buah Arduino

Rangkaian Seven Segment Counter Down Dengan Push Button Menggunakan Arduino UNO

Sketch Seven Segment Counter Down Dengan Push Button Menggunakan Arduino UNO

Sketch Program :

//Pengaturan hardware Seven Segment pins
int A = 2;
int B = 3;
int C = 4;
int D = 6;
int DP = 5;
int E = 7;
int F = 8;
int G = 9;

//pemberian status untuk push buttons pins, push buttons states, dan counter
int switchDownPin = 13;
int counter = 0;
int buttonDownState = 0;
int lastButtonDownState = 0;

void setup() 
{
  Serial.begin(9600);
  
  pinMode(A, OUTPUT);
  pinMode(B, OUTPUT);
  pinMode(C, OUTPUT);
  pinMode(D, OUTPUT);
  pinMode(E, OUTPUT);
  pinMode(F, OUTPUT);
  pinMode(G, OUTPUT);
  pinMode(DP, OUTPUT);

  digitalWrite(DP ,HIGH);
}

void loop() 
{
  //mulai dengan menggunakan push button
  buttonDownState = digitalRead(switchDownPin);

  //melakukan proses pengurangan pada Seven Segment ketika button yang di tekan
  if (buttonDownState != lastButtonDownState) 
  {
    if (buttonDownState == HIGH) 
    {
      if(counter == 0)
      {
        counter = 10;
      }
      counter--;
      Serial.println(counter);
      changeNumber(counter);
      delay(300);
    }
    else
    {
        Serial.println("OFF");
    }
   delay(50);
  }
  changeNumber(counter);
}

//tampilan led seven segment ketika aktif.
void changeNumber(int buttonPress)
{
  switch (buttonPress)
  {
    //number 0
    case 0:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, HIGH);
      break;
    //number 1
    case 1:
      digitalWrite(A, HIGH);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, HIGH);
      digitalWrite(E, HIGH);
      digitalWrite(F, HIGH);
      digitalWrite(G, HIGH);
      break;
    //number 2
    case 2:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, HIGH);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, HIGH);
      digitalWrite(G, LOW);
      break;
    //number 3
    case 3:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, HIGH);
      digitalWrite(F, HIGH);
      digitalWrite(G, LOW);
      break;
    //number 4
    case 4:
      digitalWrite(A, HIGH);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, HIGH);
      digitalWrite(E, HIGH);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
    //number 5
    case 5:
      digitalWrite(A, LOW);
      digitalWrite(B, HIGH);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, HIGH);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
    //number 6
    case 6:
      digitalWrite(A, LOW);
      digitalWrite(B, HIGH);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
    //number 7
    case 7:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, HIGH);
      digitalWrite(E, HIGH);
      digitalWrite(F, HIGH);
      digitalWrite(G, HIGH);
      break;
    //number 8
    case 8:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
    //number 9
    case 9:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, HIGH);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
  }
}

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//Pengaturan hardware Seven Segment pins

int A = 2;

int B = 3;

int C = 4;

int D = 6;

int DP = 5;

int E = 7;

int F = 8;

int G = 9;

//pemberian status untuk push buttons pins, push buttons states, dan counter

int switchDownPin = 13;

int counter = 0;

int buttonDownState = 0;

int lastButtonDownState = 0;

void setup()

{

Serial.begin(9600);

pinMode(A, OUTPUT);

pinMode(B, OUTPUT);

pinMode(C, OUTPUT);

pinMode(D, OUTPUT);

pinMode(E, OUTPUT);

pinMode(F, OUTPUT);

pinMode(G, OUTPUT);

pinMode(DP, OUTPUT);

digitalWrite(DP ,HIGH);

}

void loop()

{

//mulai dengan menggunakan push button

buttonDownState = digitalRead(switchDownPin);

//melakukan proses pengurangan pada Seven Segment ketika button yang di tekan

if (buttonDownState != lastButtonDownState)

{

if (buttonDownState == HIGH)

{

if(counter == 0)

{

counter = 10;

}

counter--;

Serial.println(counter);

changeNumber(counter);

delay(300);

}

else

{

Serial.println("OFF");

}

delay(50);

}

changeNumber(counter);

}

//tampilan led seven segment ketika aktif.

void changeNumber(int buttonPress)

{

switch (buttonPress)

{

//number 0

case 0:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, LOW);

digitalWrite(F, LOW);

digitalWrite(G, HIGH);

break;

//number 1

case 1:

digitalWrite(A, HIGH);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, HIGH);

digitalWrite(E, HIGH);

digitalWrite(F, HIGH);

digitalWrite(G, HIGH);

break;

//number 2

case 2:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, HIGH);

digitalWrite(D, LOW);

digitalWrite(E, LOW);

digitalWrite(F, HIGH);

digitalWrite(G, LOW);

break;

//number 3

case 3:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, HIGH);

digitalWrite(F, HIGH);

digitalWrite(G, LOW);

break;

//number 4

case 4:

digitalWrite(A, HIGH);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, HIGH);

digitalWrite(E, HIGH);

digitalWrite(F, LOW);

digitalWrite(G, LOW);

break;

//number 5

case 5:

digitalWrite(A, LOW);

digitalWrite(B, HIGH);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, HIGH);

digitalWrite(F, LOW);

digitalWrite(G, LOW);

break;

//number 6

case 6:

digitalWrite(A, LOW);

digitalWrite(B, HIGH);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, LOW);

digitalWrite(F, LOW);

digitalWrite(G, LOW);

break;

//number 7

case 7:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, HIGH);

digitalWrite(E, HIGH);

digitalWrite(F, HIGH);

digitalWrite(G, HIGH);

break;

//number 8

case 8:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, LOW);

digitalWrite(F, LOW);

digitalWrite(G, LOW);

break;

//number 9

case 9:

digitalWrite(A, LOW);

digitalWrite(B, LOW);

digitalWrite(C, LOW);

digitalWrite(D, LOW);

digitalWrite(E, HIGH);

digitalWrite(F, LOW);

digitalWrite(G, LOW);

break;

}

Keterangan :

Fungsivoid setup () dalam sebuah program arduino adalah semua perintah yang akan di baca sekali.
Fungsivoid loop () dalam sebuah program arduino adalah semua perintah yang akan di baca berulang-ulang.

Demo – Video Seven Segment Counter Down Dengan Push Button Menggunakan Arduino UNO

[youtube https://www.youtube.com/watch?v=FP4AKPLXZlU&w=1280&h=720]

Terimakasih, saya harap blog ini dapat bermanfaat, dan apabila ada pertanyaan jangan malu untuk bertanya

Wassalamu’alaikum warahmatullahi wabarakatuh