lcd.cpp

#include <DHT.h>
#include <Servo.h>
#include <LiquidCrystal.h>

// rs, rw, enable, d4, d5, d6, d7
LiquidCrystal lcd(5, 6, 7, 8, 9, 10, 11);
Servo servo;
DHT dht(4, DHT11);

void setup() {
  dht.begin();
  servo.attach(3);

  lcd.begin(16, 2);
  lcd.setCursor(0, 0);
  lcd.print("eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
  lcd.clear();
  lcd.setCursor(0, 0);
}

void loop() {
  float hum = dht.readHumidity();

  if (!isnan(hum)) servo.write(hum / 100.0 * 180.0);

  lcd.setCursor(0, 0);
  lcd.print(String(hum).c_str());
  lcd.print(" %");

  delay(500);
}