from machine import Pin, PWM, I2C, ADC
import ssd1306
import time 
 
ldrgantry1 = Pin(27, Pin.IN) # entry gantry
servo1=PWM(Pin(13),freq=50)

ldrgantry2 = Pin(5, Pin.IN) #exit gantry
servo2=PWM(Pin(23), freq=50) 

 # ESP32 Pin assignment 
i2c = I2C(-1, sc=Pin(22), sda=Pin(21)) #gantry status

oled_width = 128
oled_height = 64
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c)


#LDR 
led3 = Pin(12,Pin.OUT) #carpark green
led4 = Pin(14, Pin.OUT) #carpark red
led5 = Pin(19,Pin.OUT) #carpark green
led6 = Pin(16, Pin.OUT) #carpark red
led7 = Pin(2,Pin.OUT) #carpark green
led8 = Pin(4, Pin.OUT) #carpark red

ldr1=ADC(Pin(33))
ldr2=ADC(Pin(32))
ldr3=ADC(Pin(35))
ldr1.atten(ADC.ATTN_11DB)
ldr2.atten(ADC.ATTN_11DB)
ldr3.atten(ADC.ATTN_11DB)



 
while True:
    if ldrgantry1.value():
     print('entry gantry opening')
     oled.fill(0)
     oled.text('Door Opening', 15, 27)
     oled.invert(True)
     oled.show()
     servo1.duty(70)

  
    else:
      print('entry gantry closing')
      oled.fill(0)
      oled.text('Door Closing', 15,27)
      oled.invert(True)
      oled.show()
      servo1.duty(20)
    time.sleep(1)
  
    if ldrgantry2.value():
      print('exit gantry opening')
      #oled.fill(0)
      #oled.text('Door Opening', 15, 27)
      #oled.invert(True)
      #oled.show()
      servo2.duty(70)
    else:
      print('exit gantry closing')
      #oled.fill(0)
      #oled.text('Door Closing', 15, 27)
      #oled.invert(True)
      #oled.show()
      servo2.duty(20)
    time.sleep(1)
    
  
    ldr1_value=ldr1.read()
    print(ldr1_value)
    if ldr1_value > 500:
        led3.value(1)
        led4.value(0)
        print('CARPARK1: AVAILABLE')
    else:
        led3.value(0)
        led4.value(1)
        print('CARPARK1: OCCUPIED')
        time.sleep(0.3)
  
    ldr2_value=ldr2.read()
    print(ldr2_value)
    if ldr2_value > 620:
        led5.value(1)
        led6.value(0)
        print('CARPARK2: AVAILABLE')
    else:
        led5.value(0)
        led6.value(1)
        print('CARPARK2: OCCUPIED')
        time.sleep(0.3)
  
    ldr3_value=ldr3.read()
    print(ldr3_value)
    if ldr3_value > 900:
        led7.value(1)
        led8.value(0)
        print('CARPARK3: AVAILABLE')
    else:
        led7.value(0)
        led8.value(1)
        print('CARPARK3: OCCUPIED')
        time.sleep(0.3)