# this program is to create an automated sliding door using PIR sensor, 
#Ultrasonic HC-SR04 sensor, ESP 32.
#MUHAMMAD BUKHARI BIN BADRUL HISHAM
#51225122052

print('this automated sliding door uses PIR sensor, Ultrasonic and ESP 32')

#import from library
from machine import Pin, PWM, SoftI2C
from time import sleep
import machine
import oled_lib


#Declare pin for ESP 32
#pin for buzzer
buzzer = PWM(Pin(26),Pin.OUT)
#pin for PIR sensor
pir= Pin(34,Pin.IN)
#pin for servo motor
servo=machine.PWM(Pin(27, Pin.OUT),freq=50)
#pin for oled
oled = SoftI2C(scl=Pin(22), sda=Pin(21))
oled_width = 128
oled_height = 64
oled = oled_lib.SSD1306_I2C(oled_width, oled_height, oled)

motion=False
#buat function dipanggil handle_interupt
#this function will be called every time when motion is detected
def handle_interupt(pin): #def ni variable yang boleh ubah def is a function
    global motion
    motion=True
    global interrupt_pin
    interrupt_pin=pin
pir.irq(trigger=Pin.IRQ_RISING, handler=handle_interupt)

#Function to move servo motor to a certain angle
def move_servo(angle):
    duty = int(40 + (angle / 180) * 90)  # calculate duty cycle for given angle
    servo.duty(duty)


while True:
    if motion==True:
        print('Welcome to Student Lounge')
        move_servo(90)  # move servo to 90 degree position
        buzzer.init(freq=1000,duty=512)
        sleep(0.1)
        buzzer.init(freq=1,duty=0)
        sleep(0.1)
        buzzer.init(freq=500,duty=256)
        sleep(0.1)
        buzzer.init(freq=1,duty=0)
        sleep(0.1)
        oled.fill(0)
        oled.text('###########',12,0,1) #x-axis,y-axis,color font
        oled.text('# WELCOME #',12,10,1) 
        oled.text('#   TO    #',12,20,1) 
        oled.text('# STUDENT #',12,30,1) 
        oled.text('# LOUNGE  #',12,40,1)
        oled.text('###########',12,50,1)
        oled.show()
        sleep (7)
        motion=False
        move_servo(0)  # move servo to 0 degree position
    else:
        print ('############################')
        print ('#                          #')
        print ('#     SALAM AIDILFITRI     #')
        print ('#        MAAF ZAHIR        #')
        print ('#        DAN BATIN         #')
        print ('#                          #')
        print ('############################')
        move_servo(0)  # move servo to 0 degree position
        oled.fill(0)
        oled.text ('##############',5,10,1)
        oled.text ('#   SALAM    #',5,20,1)
        oled.text ('# AIDILFITRI #',5,30,1)
        oled.text ('# MAAF ZAHIR #',5,40,1)
        oled.text ('#  DAN BATIN #',5,50,1)
        oled.text ('##############',5,60,1)
        
        oled.show()
    sleep (1)