# Maqueta: Sensor Gas

Vamos a realizar un detector de gas

```
from microbit import *
import music

pin16.write_digital(0)

while True:

    if pin1.read_digital() == 0:
        music.play("C4:4")
        pin16.write_digital(1)
        sleep(100)
        music.reset()
        pin16.write_digital(0)
        sleep(100)
    else:
        music.reset()
        pin16.write_digital(0)
```

En este caso acercamos una botella de Alcohol

<iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="allowfullscreen" frameborder="0" height="874" src="https://www.youtube.com/embed/jBXuNFGVf2Q" title="DETECTOR ALCOHOL MICROBIT PYTHON SMART HOME" width="492"></iframe>

<p class="callout success">RETO visualiza la lectura del sensor gas por el pueto serie:  
Solución [https://docs.keyestudio.com/projects/KS4027-KS4028/en/latest/Python.html#project-12-analog-gas-mq-2-sensor](https://docs.keyestudio.com/projects/KS4027-KS4028/en/latest/Python.html#project-12-analog-gas-mq-2-sensor)</p>