That will make it display a two on top of a seven.
You first have to define which pins you connect abcdefg segments to in your sketch. Then if you type zero(); then the seven segment display will display zero, one(); will display one, etc. zerooff(); will turn zero off. clearall(); will turn everything off. This is an example:
#include"sevenseg.h"
int test;
#define a 13
#define b 12
#define c 11
#define d 10
#define e 9
#define f 8
#define g 7
#define dp 6
void setup(){
pinMode(a, OUTPUT);
pinMode(b, OUTPUT);
pinMode(c, OUTPUT);
pinMode(d, OUTPUT);
pinMode(e, OUTPUT);
pinMode(f, OUTPUT);
pinMode(g, OUTPUT);
pinMode(dp, OUTPUT);
}
void loop(){
zero();
delay(1000);
zerooff();
one();
delay(1000);
oneoff();
two();
delay(1000);
twooff();
three();
delay(1000);
threeoff();
four();
delay(1000);
fouroff();
five();
delay(1000);
fiveoff();
six();
delay(1000);
sixoff();
seven();
delay(1000);
sevenoff();
eight();
delay(1000);
eightoff();
nine();
nineoff();
}
[/quote]