CatFeeder.ino

#include <Servo.h>

Servo myservo;

const int servoPin = 9;
const int buttonPin = 12;
const int ledPin = 13;

void setup() {
  myservo.attach(servoPin);
  pinMode(buttonPin, INPUT);
  digitalWrite(buttonPin, HIGH);
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, LOW);
  myservo.write(180);
  delay(1000);
  myservo.detach();
}

void loop() {
  int buttonVal = digitalRead(buttonPin);
  if(buttonVal == LOW) {
    myservo.attach(servoPin);
    myservo.write(30);
    delay(575);
    myservo.write(180);
    delay(1500);
    myservo.detach();
    delay(5000);
  }
  delay(13);
}

Why did he use in the if Statment LOW and not HIGH

Why did he use in the if Statment LOW and not HIGH

arduino has internal pull up resistor, it's activated on line 12. It doesn't have pull down resistors.

Hi, Thank you for the program. It is super helpful and easy to understand. I am trying to create this for my dog. I feed him twice a day. I don't want him to keep pressing and keep getting food. How can i change the program so that after morning feed (~8AM), it does not dispense food till 5 PM?

Hi, Thank you for the program. It is super helpful and easy to understand. I am trying to create this for my dog. I feed him twice a day. I don't want him to keep pressing and keep getting food. How can i change the program so that after morning feed (~8AM), it does not dispense food till 5 PM?

https://gist.github.com/ulitiy/25d675591af73f347926b7a4e6921797

Have a look at this

that code is suit for sg90 servo?

that code is suit for sg90 servo?

Yes but it's weak.