Hello everyone, I have this carbon monoxide sensor: http://www.sainsmart.com/sainsmart-mq7-co-carbon-monoxide-gas-sensor-module-for-arduino-uno-mega2560-r3.html
wired up on a breadboard and connected to the Arduino. I'm getting analog output values, but I have no idea how to convert this to a parts per million (ppm) value. What information do I need and how do I interpret the datasheet to figure it out? I just can't see how the conversion is supposed to be made.