int a = 2, b = 3, c = 4, d = 5, e = 6, f = 7, g = 8;
int dt = 1000;
void setup() {
pinMode(a, OUTPUT);
pinMode(b, OUTPUT);
pinMode(c, OUTPUT);
pinMode(d, OUTPUT);
pinMode(e, OUTPUT);
pinMode(f, OUTPUT);
pinMode(g, OUTPUT);
}
void loop() {
// Write 0
digitalWrite(a, 1);
digitalWrite(b, 1);
digitalWrite(c, 1);
digitalWrite(d, 1);
digitalWrite(e, 1);
digitalWrite(f, 1);
digitalWrite(g, 0);
delay(dt);
// Write 1
digitalWrite(a, 0);
digitalWrite(b, 1);
digitalWrite(c, 1);
digitalWrite(d, 0);
digitalWrite(e, 0);
digitalWrite(f, 0);
digitalWrite(g, 0);
delay(dt);
// Write 2
digitalWrite(a, 1);
digitalWrite(b, 1);
digitalWrite(c, 0);
digitalWrite(d, 1);
digitalWrite(e, 1);
digitalWrite(f, 0);
digitalWrite(g, 1);
delay(dt);}