Micropython library for dealing with MQ135 gas sensor

Based on the Arduino library developed by G.Krocker (Mad Frog Labs) and the corrections from balk77 and ViliusKraujutis

More info:

• https://hackaday.io/project/3475-sniffing-trinket/log/12363-mq135-arduino-library
• https://github.com/ViliusKraujutis/MQ135
• https://github.com/balk77/MQ135

You can use ampy (https://github.com/adafruit/ampy) for uploading the files to the device

ampy put mq135_example.py
ampy put mq135.py
ampy run -n mq135_example.py

and then connect to the device with the serial comunication program (e.g: minicom) in order to see the output

Note: MQ135 sensor is connected to A0 in the example

if you want to load the code at the device boot

ampy put mq135.py main.py

Tested with Micropython for the ESP8266.