#define led1 2
#define led2 3
#define led3 4
#define led4 5
#define led5 6
#define led6 7
#define led7 8
#define led8 9
int T1 = 70;
void setup() {
for (int i=2; i<=17;i++)
pinMode(i, OUTPUT);
}
void loop()
{
for (int i=2; i<17;i++)
{
digitalWrite(i, HIGH);
delay(T1);
digitalWrite(i, LOW);
delay(T1);
if(i==9)
{
digitalWrite(2, HIGH);
delay(T1);
digitalWrite(2, LOW);
delay(T1);
}
}
}