from machine import Pin, SoftI2C, ADC, PWM
from utime import sleep
import dht
import oled_library


button = Pin(12, Pin.IN, Pin.PULL_UP)
PIR = Pin(27, Pin.IN)

ldr = ADC(Pin(34))
ldr.atten(ADC.ATTN_11DB)

pot = ADC(Pin(35))
pot.atten(ADC.ATTN_11DB)

dht_sensor = dht.DHT22(Pin(4))

Green_LED = Pin(2, Pin.OUT)
Yellow_LED = Pin(18, Pin.OUT)
Red_LED = Pin(5, Pin.OUT)

buzzer = PWM(Pin(15))
buzzer.duty(0)

i2c = SoftI2C(scl=Pin(22), sda=Pin(21))
oled = oled_library.SSD1306_I2C(128, 64, i2c)


oled.fill(0)
oled.text("SMART LEARNING", 0, 20)
oled.text("PANEL READY", 10, 35)
oled.show()
sleep(2)


while True:
    try:
        
        Green_LED.off()
        Yellow_LED.off()
        Red_LED.off()
        buzzer.duty(0)

       
        light_val = ldr.read()
        pot_val = pot.read()
        pir_state = PIR.value()
        button_state = button.value()

        dht_sensor.measure()
        temp = dht_sensor.temperature()
        hum = dht_sensor.humidity()

        print("LDR:", light_val,
              "POT:", pot_val,
              "TEMP:", temp,
              "HUM:", hum,
              "PIR:", pir_state)

        oled.fill(0)
        oled.text("SMART LEARNING", 0, 0)

       
        if pir_state:
            Yellow_LED.on()
            oled.text("Motion Detected", 0, 16)
            oled.text("Student Present", 0, 28)
        else:
            oled.text("No Student", 0, 16)

      
        if light_val > 600:
            Red_LED.on()
            buzzer.freq(2000)
            buzzer.duty(600)
            oled.text("Too Dark!", 0, 40)
        else:
            oled.text("Light OK", 0, 40)

      
        if temp > 30:
            Red_LED.on()
            buzzer.freq(2500)
            buzzer.duty(800)
            oled.text("Too Hot!", 0, 52)
        else:
            oled.text("Temp OK", 0, 52)

       
        if pot_val > 3000:
            Green_LED.on()
            oled.fill(0)
            oled.text("Good Job!", 25, 25)
            oled.text("High Score", 20, 40)

      
        if button_state == 0:
            buzzer.freq(3000)
            buzzer.duty(900)
            oled.fill(0)
            oled.text("Answer", 40, 25)
            oled.text("Submitted!", 20, 40)
            oled.show()
            sleep(0.5)
            buzzer.duty(0)

        oled.show()
        sleep(0.5)

    except Exception as e:
        oled.fill(0)
        oled.text("ERROR", 40, 30)
        oled.show()
        print("Error:", e)
        sleep(1)