print("SMART CLASSROOM SYSTEM")
print("BY: DANIAL HAFIZ")
print("DATE: 2/5/2024")

#Import Library
import oled_library
from machine import Pin, SoftI2C, PWM
from utime import sleep

#Pin Declaration
PIR_sensor = Pin(12, Pin.IN)
Green_led = Pin(4, Pin.OUT)
Red_led = Pin(2, Pin.OUT)
oled_pin = SoftI2C(scl=Pin(22), sda=Pin(21))
push_button = Pin(13, Pin.IN)
Buzzer = PWM(Pin(18, Pin.OUT))

#Parameter Declaration
Number_of_people = 0
Absent_student = 0
Total_student = 10


#Main Program
while True:
  motion_status = PIR_sensor.value()
  Green_led.off()
  Red_led.off()
  display = oled_library.SSD1306_I2C(width=128, height=64, i2c=oled_pin, external_vcc=False)
  logic_state = push_button.value()
  Buzzer.init(freq=1, duty=0)

  if motion_status == True:
    Green_led.on()
    Red_led.off()
    Number_of_people = Number_of_people + 1
    print("NUMBER OF STUDENT ATTEND THIS CLASS = ", Number_of_people)
    print("TOTAL OF STUDENT FOR THIS CLASS = ", Total_student)
    display.fill(0)
    display.text("SELAMAT DATANG",  x=5, y=10, col=1)
    display.text("KE KELAS",  x=5, y=20, col=1)
    display.show()

  elif logic_state == True:
    for m in range(10):
      Buzzer.init(freq=800, duty=100)
      sleep(0.5)
      Buzzer.init(freq=1047, duty=0)
      sleep(0.5)
      display.fill(0)
      display.text("CLASS DISMISS",  x=5, y=10, col=1)
      display.show()
      sleep(2)
      print("NUMBER OF STUDENT ATTEND THIS CLASS = ", Number_of_people)
      print("TOTAL OF STUDENT FOR THIS CLASS = ", Total_student)

  else:
    Number_of_people = Number_of_people + 0
    Absent_student = Total_student - Number_of_people
    Red_led.on()
    Green_led.off()
    print("NUMBER OF STUDENT ATTEND THIS CLASS = ", Number_of_people)
    print("NUMBER OF ABSENT STUDENT = ", Absent_student)

  motion_status = 0
  sleep(5)