Arduino Project: Voice Home Assistant (Roni) (Code)

#include
LiquidCrystal_I2C lcd(0x27,16,2);

int buzzer=2;
String readString = "";
#define led 13
#define led2 12
#define led3 8
#define led4 7
#define led5 4

void setup() {
lcd.begin();
lcd.backlight();
lcd.setCursor(0,0);
pinMode(buzzer, OUTPUT);
delay(500);
pinMode(buzzer, INPUT);
pinMode(led, OUTPUT);
digitalWrite(led, LOW);
Serial.begin(9600);
}
void loop() {

while (Serial.available()) {
char c = (char)Serial.read();
readString += c;
}

if (readString.length() > 0) { // komut var ise

if (readString == "Roni can you help me"){
digitalWrite(led3, HIGH);
digitalWrite(buzzer,HIGH);
delay(300);
digitalWrite(buzzer,LOW);
lcd.print("Hello");
if (readString == "Can you open the door"){
lcd.clear();
lcd.print("Of course");
digitalWrite(led, HIGH);
delay(1000);
lcd.clear();
}

if (readString == "Can you close the door") {
lcd.clear();
lcd.print("Sure");
digitalWrite(led, LOW);
delay(1000);
lcd.clear();
}
if (readString == "Can you turn on the light") {
lcd.clear();
lcd.print("LİGHT!");
digitalWrite(led2, HIGH);
delay(1000);
lcd.clear();
}

if (readString == "Can you turn of the light") {
lcd.clear();
lcd.print("DARK!");
digitalWrite(led2, LOW);
delay(1000);
lcd.clear();
}
if (readString == "can you open the drawer") {
lcd.clear();
lcd.print("Openiiing!!");
digitalWrite(led4 ,HIGH);
delay(1000);
lcd.clear();
}
if (readString == "can you close the drawer") {
lcd.clear();
lcd.print("Closiiing!!");
digitalWrite(led4 ,LOW);
delay(1000);
lcd.clear();
}
if (readString == "can you give the cable") {
lcd.clear();
lcd.print("Here you are");
digitalWrite(led5 ,HIGH);
delay(1000);

if (readString == "Thanks you"){
lcd.clear();
lcd.print("You're welcome:)");
digitalWrite(led3, LOW);
digitalWrite(led5, LOW);
}
}
readString = "";
}
}
delay(100);
}

Perfect project

so good i love it

Good. I love it

Nice