#define switch_1 1
#define adj_sw 2
#define max_del 500

int getdelay();

void setup() {
  pinMode(26,OUTPUT);
  pinMode(27,OUTPUT);
  pinMode(14,OUTPUT);
  pinMode(12,OUTPUT);
  pinMode(switch_1,INPUT);
  pinMode(adj_sw,INPUT);
}

void loop() {
  int val = getdelay();
  if(digitalRead(switch_1)==true){
    digitalWrite(26,HIGH);
    delay(val);
    digitalWrite(26,LOW);

    digitalWrite(27,HIGH);
    delay(val);
    digitalWrite(27,LOW);

    digitalWrite(14,HIGH);
    delay(val);
    digitalWrite(14,LOW);

    digitalWrite(12,HIGH);
    delay(val);
    digitalWrite(12,LOW);
  }
}
  int getdelay(){
double voltage = analogRead(adj_sw);
return voltage/1023*max_del;
  }