Hi. I just bought the MQ7 sensor module and connected it to arduino. I'm getting analog values on serial monitor. can anyone help me to convert this to ppm? its a ready made module with four pins. I used 5v as supply voltage.
pls comment ur ideas..
The VERY FIRST entry when I googled "MQ7 " was a pdf that has a conversion graph for quite a few different gases. Did you not find that graph?
Paul