I've connected my circuit as shown in the diagram
I have one issue which I am concern about the Analog Output from the Gas sensor is 0-5V, is it fine to connect to the MCP3008 ADC A0 pin?
I've read online, some guides says it's Ok to straight connect, some says need to regulate the voltage to 3.3V
According to https://tutorials-raspberrypi.com/confi ... nsor-mq-x/ , he is using a logic level converter, but as I know these module doesn't take analog inputs?
Please clarify whether its safe to connect according to my schematic or I would need to put a voltage divider like https://www.circuito.io/app?components= ... 000,398790