import machine
import urequests 
from machine import Pin, ADC
import network
import time

HTTP_HEADERS = {'Content-Type': 'application/json'} 
THINGSPEAK_WRITE_API_KEY = '6JEOWRIVWZ6E0USY'  
ssid = 'SRKHALL'
password = ''

# Configure Pico W as Station
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)

if not sta_if.isconnected():
    print('connecting to network...')
    sta_if.connect(ssid, password)
    while not sta_if.isconnected():
        pass

print('network config:', sta_if.ifconfig()) 

# Define your soil moisture sensor pin (analog pin)
soil_pin = 26  # Adjust this pin according to your wiring

# Initialize the ADC (Analog to Digital Converter) for the soil moisture sensor
adc = ADC(Pin(soil_pin))
max_adc_value = 4095  # Maximum ADC value, might differ based on board

while True:
    time.sleep(5)  # Adjust the delay as needed
    
    moisture_level = adc.read_u16()  # Read the raw ADC value
    moisture_percentage = (moisture_level / max_adc_value) * 100  # Convert to percentage
    print("Moisture Level:", moisture_percentage)

    # Prepare data to send to ThingSpeak
    data = {'field5': moisture_percentage}  # Change field number accordingly
    
    # Send data to ThingSpeak
    request = urequests.post('http://api.thingspeak.com/update?api_key=' + THINGSPEAK_WRITE_API_KEY, json=data, headers=HTTP_HEADERS)
    request.close()
    
    print("Data Sent to ThingSpeak:", data)