from machine import ADC, Pin
import utime

# Define LM35 sensor pin
lm35_pin = Pin(6)

# Create ADC object
adc = ADC(0)

# Function to read temperature from LM35 sensor
def read_temperature():
    # Read analog value from LM35
    raw_value = adc.read_u16()

    # Convert analog value to voltage (3.3V max)
    voltage = (raw_value / 65535) *3.3

    # LM35 outputs 10mV per degree Celsius
    temperature_celsius = voltage * 100

    return temperature_celsius

# Main loop
while True:
    # Read temperature from LM35 sensor
    temperature = read_temperature()

    # Print temperature
    print("Temperature: {:.2f} °C".format(temperature))

    # Wait for 1 second
    utime.sleep(1)