a common cathode seven segment display library

Projects Programming
13

Hi guys! I've given more meaningful names to the variables AND I've set a function so you can choose between common cathode and and common anode! Thanks everybody for the help and support!

#include<Arduino.h>
int pin_a;
int pin_b;
int pin_c;
int pin_d;
int pin_e;
int pin_f;
int pin_g;
int ON;
int OFF;
void sevensegpins(int z, int y, int x, int w, int v, int u, int t){
  pin_a=z;
  pin_b=y;
  pin_c=x;
  pin_d=w;
  pin_e=v;
  pin_f=u;
  pin_g=t;
  pinMode(pin_a, OUTPUT);
  pinMode(pin_b, OUTPUT);
  pinMode(pin_c, OUTPUT);
  pinMode(pin_d, OUTPUT);
  pinMode(pin_e, OUTPUT);
  pinMode(pin_f, OUTPUT);
  pinMode(pin_g, OUTPUT);
}
void common_cathode(boolean cathode){
  if(cathode==true){
    ON=HIGH;
    OFF=LOW;
  }
  else{
    ON=LOW;
    OFF=HIGH;
  }
}
void clearall(){
  digitalWrite(pin_a, OFF);
  digitalWrite(pin_b, OFF);
  digitalWrite(pin_c, OFF);
  digitalWrite(pin_d, OFF);
  digitalWrite(pin_e, OFF);
  digitalWrite(pin_f, OFF);
  digitalWrite(pin_g, OFF);
}
void zero(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_d, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
}
void one(){
  clearall();
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
}
void two(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_g, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_d, ON);
}
void three(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_g, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_d, ON);
}
void four(){
  clearall();
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
}
void five(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_d, ON);
}
void six(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_g, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_d, ON);
}
void seven(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
}
void eight(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_d, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
}
void nine(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
}
void lettera(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
}
void letterb(){
  clearall();
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_d, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_g, ON);
}
void letterB(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_d, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
}
void letterc(){
  clearall();
  digitalWrite(pin_d, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_g, ON);
}
void letterC(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_d, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
}
void letterd(){
  clearall();
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_d, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_g, ON);
}
void letterD(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_d, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
}
void lettere(){
  digitalWrite(pin_a, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_d, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
}
void letterE(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_d, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
}
void letterf(){  
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_g, ON);
  }
void letterh(){
  clearall();
  digitalWrite(pin_c, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
}
void letterH(){
  clearall();
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_g, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
}
void letterl(){
  clearall();
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
}
void letterL(){
  clearall();
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_d, ON);
}
void letterp(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
}
void letterq(){
  digitalWrite(pin_a, ON);
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
}
void letters(){
  clearall();
  digitalWrite(pin_a, ON);
  digitalWrite(pin_f, ON);
  digitalWrite(pin_g, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_d, ON);
}
void letteru(){
  clearall();
  digitalWrite(pin_b, ON);
  digitalWrite(pin_c, ON);
  digitalWrite(pin_d, ON);
  digitalWrite(pin_e, ON);
  digitalWrite(pin_f, ON);
}
void sevenseg(int val){
  if(val==0){
    zero();
  }
  if(val==1){
    one();
  }
  if(val==2){
    two();
  }
  if(val==3){
    three();
  }
  if(val==4){
    four();
  }
  if(val==5){
    five();
  }
  if(val==6){
    six();
  }
  if(val==7){
    seven();
  }
  if(val==8){
    eight();
  }
  if(val==9){
    nine();
  }
}

this is a sample program:

#include"sevenseg.h"
int val=0;
void setup(){
  sevensegpins(13, 12, 11, 10, 9, 8, 7);
  common_cathode(true);
}
void loop(){
  val=(analogRead(0));
  val=map(val, 0, 1023, 0, 9);
  sevenseg(val);
}

Habib