Arduino Button Trouble - arduino

Question

I am just trying to make it so the light turns on when my button state is high. what am I doing wrong??? I keep getting it randomly turning on and off. Thank you in advance.
const int buttonPin = 2;
const int ledPin = 13;
int buttonState = 0;
boolean curstat = LOW;
boolean lasstat = LOW;
boolean ledState = LOW;
void loop(){
curstat = digitalRead(buttonPin);
if (curstat == HIGH && lasstat == LOW){
Serial.println("pressed");
delay(1);
bucount = bucount + 1;
Serial.println(bucount);
myservo.write(180);
delay(1);
digitalWrite(ledPin, HIGH);
delay(1);
}
else if(curstat == LOW && lasstat == HIGH){
Serial.println("relased");
delay(1);
myservo.write(89);
delay(1);
digitalWrite(ledPin, HIGH);
delay(1);
}
else if(curstat == LOW && lasstat == LOW){
Serial.println("nothing has happened");
digitalWrite(ledPin, LOW);
delay(1);
myservo.write(90);
delay(1);
}
}

Answer 1

first of all you'll need to declare input and output in setup:
void setup(){
pinMode(buttonPin, INPUT)
pinMode(ledPin, OUTPUT)
}
the other important thing is that you read curstat, but you never change lasstat, so Arduino will never understand previous state, consider adding this code:
if (curstat == HIGH && lasstat == LOW){
Serial.println("pressed");
delay(1);
digitalWrite(ledPin, HIGH);
delay(1);
lasstat = HIGH;
}
In this way you'll enter in if statement only once, even if you'll keep your button pressed too long. Don't forget to change lasstat also in other if statements.
Ciao!