robot line follower arduino di proteus

#arduino
#mikrokontroler
#jaringankomputer
#servicekomputer
#teknikdigital
void setup() {
pinMode(5,OUTPUT);
pinMode(6,OUTPUT);
pinMode(7,OUTPUT);
pinMode(8,OUTPUT);
pinMode(9,INPUT);
pinMode(10,INPUT);
}
void loop() {
int s1=digitalRead(9);
int s2=digitalRead(10);
if(s1==HIGH && s2==HIGH)
{
digitalWrite(5,HIGH);
digitalWrite(6,LOW);
digitalWrite(7,HIGH);
digitalWrite(8,LOW);
}
else if(s1==HIGH&&s2==LOW)
{
digitalWrite(5,HIGH);
digitalWrite(6,LOW);
digitalWrite(7,HIGH);
digitalWrite(8,HIGH);
}
else if(s1==LOW&&s2==HIGH)
{
digitalWrite(5,LOW);
digitalWrite(6,LOW);
digitalWrite(7,HIGH);
digitalWrite(8,LOW);
}
else
{
digitalWrite(5,HIGH);
digitalWrite(6,LOW);
digitalWrite(7,LOW);
digitalWrite(8,LOW);
}
}