print("Ceiling Fan ")

#Import libraries
from machine import Pin , SoftI2C , PWM
from dht import DHT22
from utime import sleep
import oled_lib


#Declare components
sensor = DHT22(Pin(13, Pin.IN))
oled_pin = SoftI2C(sda=Pin(21) , scl=Pin(22))
servo_pin = 18


#ObjectName = LibraryName.ClassName(.....)
skrin = oled_lib.SSD1306_I2C( width = 128, height = 64, i2c = oled_pin)
servo = PWM(Pin(servo_pin), freq=50)


def set_servo_angle(angle):
    min_duty = 25
    max_duty = 125
    duty = int(min_duty + (angle / 180) * (max_duty - min_duty))
    servo.duty(duty)


# FUNCTION: FAN STATUS

def get_fan_status(temp):
    if temp <27:
        return 0, "OFF"
    elif temp <31:
        return 90, "MEDIUM"
    else:
        return 180, "HIGH"

while True:
    sensor.measure()
    suhu = sensor.temperature() #unit: celcius
    humid = sensor.humidity() #unit:%

    angle, status = get_fan_status(suhu)
    set_servo_angle(angle)

    print("Temperature: ",suhu, "C")
    print("Humidity: " , humid, "%")


    #Display the latest temperature indication
    if suhu <27:
        set_servo_angle(0)
        print("suhu sejuk")
        sleep(0.1)
        skrin.fill(0)
        skrin.text("Smart Fan", 20, 0)
        skrin.text("Suhu: " + str(suhu) + " C", 0, 16)
        skrin.text("Humid: " + str(humid) + " %", 0, 28)
        skrin.text("Status: OFF", 0, 40)
        skrin.text("Servo: " + str(angle), 0, 52)
        skrin.show()
        
       
    elif suhu <31:
        set_servo_angle(90)
        print("suhu sederhana")
        sleep(0.1)
        skrin.fill(0)
        skrin.text("Smart Fan", 20, 0)
        skrin.text("Suhu: " + str(suhu) + " C", 0, 16)
        skrin.text("Humid: " + str(humid) + " %", 0, 28)
        skrin.text("Status: MEDIUM", 0, 40)
        skrin.text("Servo: " + str(angle), 0, 52)
        skrin.show()
        
    else :
        set_servo_angle(180)
        print("suhu panas")
        sleep(0)
        skrin.fill(0)
        skrin.text("Smart Fan", 20, 0)
        skrin.text("Suhu: " + str(suhu) + " C", 0, 16)
        skrin.text("Humid: " + str(humid) + " %", 0, 28)
        skrin.text("Status: HIGH", 0, 40)
        skrin.text("Servo: " + str(angle), 0, 52)
        skrin.show()
        
 
sleep(0.1)