from machine import Pin, Timer
import time

trigpin1 = 5
echopin1 = 12
trigpin2 = 2
echopin2 = 14

# Define Wi-Fi credentials
ssid = "YourWiFiSSID"
passw = "YourWiFiPassword"

# Define Blynk authentication token
auth_token = "YourAuthToken"

# Define Blynk virtual pins
BLYNK_VIRTUAL_PIN_PUSH = 0
BLYNK_VIRTUAL_PIN_POWER = 1
BLYNK_VIRTUAL_PIN_LIGHT_DEFECT = 2

# Define constants
A0 = 0
HIGH = 1
LOW = 0

# Initialize Pins
pin16 = Pin(16, Pin.IN)  # Push Button Input
pin15 = Pin(15, Pin.OUT)  # Light
pin13 = Pin(13, Pin.IN)  # Sun Light Detecting LDR Sensor
pin12 = Pin(12, Pin.IN)  # PIR Sensor 1
pin14 = Pin(14, Pin.IN)  # PIR Sensor 2
pin4 = Pin(4, Pin.IN)  # Check for Light Fault
pin_trig1 = Pin(trigpin1, Pin.OUT)  # Ultra 1
pin_echopin1 = Pin(echopin1, Pin.IN)  # Ultra 1
pin_trig2 = Pin(trigpin2, Pin.OUT)  # Ultra 2
pin_echopin2 = Pin(echopin2, Pin.IN)  # Ultra 2
pin10 = Pin(10, Pin.IN)  # Power Line Check

# Set initial states
pin_trig1.value(LOW)
pin_trig2.value(LOW)

# Define delay function for microseconds
def delay_microseconds(us):
    time.sleep_us(us)

# Function to measure distance using ultrasonic sensor
def measure_distance(trigger_pin, echo_pin):
    trigger_pin.value(HIGH)
    delay_microseconds(10)
    trigger_pin.value(LOW)
    pulse_time = time.ticks_us()
    while echo_pin.value() == 0:
        pulse_time = time.ticks_us()
    while echo_pin.value() == 1:
        pulse_end = time.ticks_us()
    pulse_duration = time.ticks_diff(pulse_end, pulse_time)
    distance = (pulse_duration * 0.034) / 2
    return distance

# Function to handle Blynk virtual writes
def handle_blynk_virtual_write(pin, value):
    print("Virtual Pin {} wrote value: {}".format(pin, value))

# Function to handle Blynk virtual reads
def handle_blynk_virtual_read(pin):
    print("Virtual Pin {} read".format(pin))
    # You can perform necessary actions based on virtual read if needed

# Setup Blynk
# Currently, Raspberry Pi Pico with MicroPython doesn't have support for Blynk.
# You may need to use an alternative IoT platform or implement the communication protocol yourself.

# Setup Blynk Timer
blynk_timer = Timer(-1)

# Setup Blynk Virtual Write and Read callbacks
# Currently, Raspberry Pi Pico with MicroPython doesn't have support for Blynk.
# You may need to use an alternative IoT platform or implement the communication protocol yourself.

def setup():
    # Connect to Wi-Fi (if applicable)
    # Currently, Raspberry Pi Pico with MicroPython doesn't have built-in Wi-Fi.
    # You may need to use an external Wi-Fi module or connect using a different method.

    # Initialize serial communication for debugging (not applicable)

    # Initialize pins (pins are already initialized)

    print("Setup done")

def loop(timer):
    push = pin16.value()
    if push == 1:
        print("Emergency Alert: Client on NHAI Highway Needs Immediate Assistance")
        time.sleep(10)
        # Blynk.virtualWrite(BLYNK_VIRTUAL_PIN_PUSH, push)  # Uncomment when using Blynk
        # time.sleep(1)

    power = pin10.value()
    if power == 1:
        # Blynk.virtualWrite(BLYNK_VIRTUAL_PIN_POWER, power)  # Uncomment when using Blynk
        # time.sleep(1)

        c = pin13.value()
        if c == 1:
            print("There is no SunLight!!!!!!!!!!!!")
            print("Object Detection using ultrasonic Sensor")
            # Ultrasonic 1
            distance1 = measure_distance(pin_trig1, pin_echopin1)

            # Ultrasonic 2
            distance2 = measure_distance(pin_trig2, pin_echopin2)

            if distance1 < 10:
                pin15.value(HIGH)
                print("Object is Detected!!!!!!!!!!")
                print("1st Sensor Distance:", distance1)
                kk = pin4.value()
                if kk == 1:
                    print("Light is having Defect")
                time.sleep(5)

            elif distance2 < 10:
                pin15.value(HIGH)
                print("Object is Detected!!!!!!!!!!")
                print("2nd Sensor Distance:", distance2)
                k = pin4.value()
                if k == 1:
                    print("Light is having Defect")
                    # Blynk.virtualWrite(BLYNK_VIRTUAL_PIN_LIGHT_DEFECT, k)  # Uncomment when using Blynk
                    # time.sleep(1)
                time.sleep(5)
            else:
                pin15.value(LOW)
        else:
            pin15.value(LOW)
            print("It is Day Time So Sun Light is Available!!!!!!!!!!!!")
    else:
        print("Power is Not There")


# Setup
setup()

# Start looping
blynk_timer.init(period=1000, mode=Timer.PERIODIC, callback=loop)