Incorporating button into Servo Loop - arduino

Question

I am extremely new so please bare with me. I am attempting to control a servo by both the internal timer and by button. Essentially the servo will open a door for 6 seconds every 24 hours or so OR if you press the button enter image description here
The loop for the timer works but the button doesn't. However if i just upload the button code it works fine. Help please! Even better if the servo could go to 180 when the button is held down and return to 0 when released would be ideal.
Here is my code. Tell me where I messed up please!
#include <Servo.h>
Servo myservo;
const int BUTTON_PIN = 8;
const int SERVO_PIN = 9;
int angle = 0; // the current angle of servo motor
int lastButtonState; // the previous state of button
int currentButtonState; // the current state of button
void setup(){
myservo.attach(SERVO_PIN);
Serial.begin(9600);
pinMode(BUTTON_PIN, INPUT_PULLUP);
myservo.write(angle);
currentButtonState = digitalRead(BUTTON_PIN);
}
void loop(){
myservo.write(0);// move servos to center position -> 90°
delay(18000);
myservo.write(180);// move servos to center position -> 120°
delay (6000);
lastButtonState = currentButtonState; // save the last state
currentButtonState = digitalRead(BUTTON_PIN); // read new state
if(lastButtonState == HIGH && currentButtonState == LOW) {
Serial.println("The button is pressed");
// change angle of servo motor
if(angle == 180)
angle = 0;
else
if(angle == 0)
angle = 180;
// control servo motor arccoding to the angle
myservo.write(angle);
}
}

Answer 1

Based on your picture your pins should be 7 and 9. Basically, the only issue with your code is that you can not use delay if you also want to be monitoring something (your button). So instead you use what is called a watchdog timer, where you basically make something happen ever so often based on the system clock, but then also remain available to do other things when that is not happening.
Comparing the blink and blink without delay examples in the arduino example sketch folder may help explain this concept further.
#include <Servo.h>
Servo myservo;
const int BUTTON_PIN = 7;
const int SERVO_PIN = 9;
unsigned long dayTimer_ms = 0;
unsigned long autoOpenDelay_ms = 86400000;
int angle = 0;
void setup(){
myservo.attach(SERVO_PIN);
Serial.begin(9600);
pinMode(BUTTON_PIN, INPUT_PULLUP);
myservo.write(0);
}
void loop() {
if(millis() - dayTimer_ms > autoOpenDelay_ms )
{
dayTimer_ms = millis();
myservo.write(180); //(open?)
delay(6000);
myservo.write(0);
}
if(millis()<dayTimer_ms)//overflow handling (in case this runs for more than 50 days straight)
{
dayTimer_ms = millis();
}
if (!digitalRead(BUTTON_PIN) && angle != 180)
{
angle = 180;
myservo.write(angle);
}
if (digitalRead(BUTTON_PIN) && angle != 0)
{
angle = 0;
myservo.write(angle);
}
}