int vr  = 32;
int vrvalue;
int led1=21;
int led2=19;
int led3=5;
int led4=4;
int led5=2;
void setup() {
Serial.begin(9600);
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(led3, OUTPUT);
pinMode(led4, OUTPUT);
pinMode(led5, OUTPUT);
}
void loop() {
vrvalue = analogRead(vr);
Serial.print("vrvalue = ");
Serial.println(vrvalue);
if(vrvalue==0){
digitalWrite(led1,0);
digitalWrite(led2,0);
digitalWrite(led3,0);
digitalWrite(led4,0);
digitalWrite(led5,0);
}
if(vrvalue>=1&&vrvalue<=800){
digitalWrite(led1,1);
digitalWrite(led2,0);
digitalWrite(led3,0);
digitalWrite(led4,0);
digitalWrite(led5,0);}
if(vrvalue>=801&&vrvalue<=1600){
digitalWrite(led1,1);
digitalWrite(led2,1);
digitalWrite(led3,0);
digitalWrite(led4,0);
digitalWrite(led5,0);}
if(vrvalue>=1601&&vrvalue<=2400){
digitalWrite(led1,1);
digitalWrite(led2,1);
digitalWrite(led3,1);
digitalWrite(led4,0);
digitalWrite(led5,0);}
if(vrvalue>=2401&&vrvalue<=3200){
digitalWrite(led1,1);
digitalWrite(led2,1);
digitalWrite(led3,1);
digitalWrite(led4,1);}
digitalWrite(led5,0);
if(vrvalue>=3201&&vrvalue<=4095){
digitalWrite(led1,1);
digitalWrite(led2,1);
digitalWrite(led3,1);
digitalWrite(led4,1);
digitalWrite(led5,1);}  
}