from machine import Pin, I2C, ADC
from ssd1306 import SSD1306_I2C
import sys
import time
import dht

# Initialize DHT22 sensor
dht22 = dht.DHT22(Pin(9))

# Define the resolution of the OLED display
pix_res_x = 128
pix_res_y = 64

# Define ADC pin for light sensor
light_sensor_pin = 34  # Update with the correct pin number for your board
adc = ADC(Pin(light_sensor_pin))

# Function to initialize I2C
def init_i2c(scl_pin, sda_pin):
    i2c_dev = I2C(1, scl=Pin(scl_pin), sda=Pin(sda_pin), freq=200000)
    i2c_addr = [hex(ii) for ii in i2c_dev.scan()]
    
    if not i2c_addr:
        print('No I2C Display Found')
        sys.exit()
    else:
        print("I2C Address      : {}".format(i2c_addr[0]))
        print("I2C Configuration: {}".format(i2c_dev))
    
    return i2c_dev

# Function to display text on OLED
def display_text(oled):
    oled.fill(0)
    
    # Read sensor data
    dht22.measure()
    temperature_C = dht22.temperature()
    humidity = dht22.humidity()
    
    # Read light intensity
    light_intensity = adc.read()  # Read ADC value (0-1023 for a 10-bit ADC)
    
    # Convert temperature to Fahrenheit
    temperature_F = 32 + (1.8 * temperature_C)
    
    # Display data on OLED
    oled.text('Temp (C): ', 0, 10)
    oled.text(str(temperature_C), 60, 10)
    oled.text('Humidity: ', 0, 30)
    oled.text(str(humidity), 60, 30)
    oled.text('Light Intensity: ', 0, 50)
    oled.text(str(light_intensity), 60, 50)
    
    oled.show()
    time.sleep(2)

# Main function
def main():
    i2c_dev = init_i2c(scl_pin=27, sda_pin=26)
    oled = SSD1306_I2C(pix_res_x, pix_res_y, i2c_dev)
    
    while True:
        display_text(oled)

# Run the main function
if __name__ == '__main__':
    main()