import machine
import utime

mq2_AO = machine.ADC(machine.Pin(34))

mq2_AO.atten(machine.ADC.ATTN_11DB)

print("MQ-2 Sensor Test")

while True:
    Sensor_value = mq2_AO.read()

    print("Analog Value:", Sensor_value)

    if Sensor_value > 2000:
        print("Gas Detected")
    else:
        print("No gas Detected")

    utime.sleep_ms(1000)