int ledVerde = 18;
int ledAmarelo = 19;
int ledVermelho = 21;
int ledRoxo = 5;
int pot = 35;


void setup() {
  pinMode(ledVerde, OUTPUT);
  pinMode(ledAmarelo, OUTPUT);
  pinMode(ledVermelho, OUTPUT);
  pinMode(ledRoxo, OUTPUT);
  pinMode(pot, INPUT);
  Serial.begin(115200);
  Serial.println("Potenciometro");
}

void loop() {
int ler = analogRead(pot);
int volume = map(ler,0, 4095, 0, 100);
Serial.println(ler);
Serial.println(volume);

if(volume > 20 && volume <=40){
  digitalWrite(ledVerde, HIGH);
  digitalWrite(ledAmarelo, LOW);
  digitalWrite(ledVermelho, LOW);
  digitalWrite(ledRoxo, LOW);
}
if(volume > 40 && volume <=60){
  digitalWrite(ledVerde, HIGH);
  digitalWrite(ledAmarelo, HIGH);
  digitalWrite(ledVermelho, LOW);
  digitalWrite(ledRoxo, LOW);
}
if(volume > 60 && volume <=80){
  digitalWrite(ledVerde, HIGH);
  digitalWrite(ledAmarelo, HIGH);
  digitalWrite(ledVermelho, HIGH);
  digitalWrite(ledRoxo, LOW);
}
if(volume > 80 && volume <=99){
  digitalWrite(ledVerde, HIGH);
  digitalWrite(ledAmarelo, HIGH);
  digitalWrite(ledVermelho, HIGH);
  digitalWrite(ledRoxo, HIGH);
}
if(volume <20){
  digitalWrite(ledVerde, LOW);
  digitalWrite(ledAmarelo, LOW);
  digitalWrite(ledVermelho, LOW);
  digitalWrite(ledRoxo, LOW);
}
if(volume == 100){
  digitalWrite(ledVerde, HIGH);
  delay(20);
  digitalWrite(ledVerde, LOW);
  delay(20);
  digitalWrite(ledAmarelo, HIGH);
  delay(20);
  digitalWrite(ledAmarelo, LOW);
  delay(20);
  digitalWrite(ledVermelho, HIGH);
  delay(20);
  digitalWrite(ledVermelho, LOW);
  delay(20);
  digitalWrite(ledRoxo, HIGH);
  delay(20);
  digitalWrite(ledRoxo, LOW);
  delay(20);
}
}