#define SL1 7
#define SL2 8
#define SL3 9
#define SL4 10
#define FL1 3
#define FL2 4
#define FL3 5
#define FL4 6

void setup(){
	pinMode(SL1,OUTPUT);
	pinMode(SL2,OUTPUT);
	pinMode(SL3,OUTPUT);
	pinMode(SL4,OUTPUT);
	
	pinMode(FL1, INPUT_PULLUP);
	pinMode(FL2, INPUT_PULLUP);
	pinMode(FL3, INPUT_PULLUP);
	pinMode(FL4, INPUT_PULLUP);
}
void loop(){
	testSolenoids();
	testSensors();
	delay(5000);
}

void testSolenoids(){
	digitalWrite(SL1, HIGH);
	delay(1000);
	digitalWrite(SL1, LOW);
	digitalWrite(SL2, HIGH);
	delay(1000);
	digitalWrite(SL2, LOW);
	digitalWrite(SL3, HIGH);
	delay(1000);
	digitalWrite(SL3, LOW);
	digitalWrite(SL4, HIGH);
	delay(1000);
	digitalWrite(SL4, LOW);
}

void testSensors(){
	while(1){
	if(digitalRead(FL1) == 0)
		digitalWrite(SL1,HIGH);
	else
		digitalWrite(SL1,LOW);

	if(digitalRead(FL2) == 0)
		digitalWrite(SL2,HIGH);
	else
		digitalWrite(SL2,LOW);

		if(digitalRead(FL3) == 0)
		digitalWrite(SL3,HIGH);
	else
		digitalWrite(SL3,LOW);

		if(digitalRead(FL4) == 0)
		digitalWrite(SL4,HIGH);
	else
		digitalWrite(SL4,LOW);	
	}

}