Hello everyone, my situation is that I am trying to use an MQ135 air quality sensor with the Raspberry Pi so that it goes up to ThingSpeak, but since it uses an analog output, I would like to use a Nano via I2C, I just don't have a idea of how to do the programming and the connection through in that case. Awaiting prompt response, thanks.
There are many sellers on eBay - not sure if that works from Paraguay?
Yes, I know but this is a final project for a subject in my school and the date of delivery is this next monday. Btw all the problems were finally solved using the serial connection. Thank you to all for answering.