2nd Project - 7-Segment counter with push button

2nd Project - 7-Segment counter with push button

Gambar 1 - 7-Segment counter with push button

Proyek ini merupakan tugas kedua mata kuliah II3231 - Interaksi Manusia, Komputer dan Antarmuka. Proyek ini merupakan kelanjutan dari proyek pertama (LED Flasher with toggle switch). Proyek ini menghasilkan sebuah alat yang bisa menampilkan angka dari 0 sampai dengan 9, kemudian kembali lagi dari 0 pada sebuah komponen 7-Segment (seven segment). Penghitungan atau perubahan angka dilakukan dengan menekan sekali push button untuk setiap perubahan angka. Angka berubah secara incremental ketika tombol ditekan.

Pada proyek ini kami menggunakan beberapa komponen yang hampir sama dengan proyek 1 sebelumnya, hanya ada beberapa tambahan dan ada yang dihilangkan.

Gambar 2 - Komponen yang digunakan

1. Arduino UNO ATMega328 + Kabel USB

2. 7-Segment

3. Resistor 100 ohm, 200 ohm

4. Push Button

5. Kabel Jumper Male to male

6. Breadboard

7. Laptop

Berikut rangkaian skematik digram dari proyek ini.

Berikut ini merupakan source code yang di-upload pada Arduino:

//Inisialisasi Pin 7-Segment

int A = 3;

int B = 2;

int C = 4;

int D = 5;

int DP = 7;

int E = 6;

int F = 8;

int G = 9;

//Inisialisasi Pin Push button, state awal dan membuat counter

int switchUpPin = 13;

int counter = 0;

int buttonUpState = 0;

int lastButtonUpState = 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);

 //Start with the deceimal point off

 digitalWrite(DP ,HIGH);

}

void loop() 

{

 //Getting the reads from the buttons

 buttonUpState = digitalRead(switchUpPin);

 //Detecting button press and getting the button status

 //Do this for the button up

 if (buttonUpState != lastButtonUpState) 

 {

 if (buttonUpState == HIGH) 

 {

 //Reset the counter to -1

 if(counter == 9)

 {

 counter = -1;

 }

 //Increase the counter by 1

 counter++;

 //Print the counter to the console and calling the function

 Serial.println(counter);

 changeNumber(counter);

 //Delaying by 250 ms

 delay(250);

 }

 else

 {

 Serial.println("OFF");

 }

 //Delay to avoid button bouncing

 delay(50);

 }

 //Calling the function changeNumber with the arg counter

 changeNumber(counter);

}

//The function to display the numbers

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, HIGH);

 digitalWrite(E, HIGH);

 digitalWrite(F, LOW);

 digitalWrite(G, LOW);

 break;

 }

}

(Sumber : http://www.instructables.com/id/Arduino-7-Segment-Click-Counter/?ALLSTEPS )

Hasil implementasi selengkapnya dapat dilihat di:

https://www.youtube.com/watch?v=1YSZVIyHlEY