I am an ABSOLUTE beginner at Raspberry Pi and my first project I've proposed to my teacher is as follows: an Mq-2 smoke sensor will sense smoke and if the level of smoke reaches a certain value (only because I want the smoke to accumulate for aesthetics purposes) then a video file in whatever directory opens and plays. It seemed plausible at first, but as I search for pertinent info., I am faced with content and hobbyists whose instructions and "knowledge" are way out of my depth.
Here are a few ideas I have adumbrated:
1.)Can the raspberry Pi read this voltage output by the sensor (sans ADC)? If so, is it possible for me to make a conditional statement so even the slightest output of voltage would open a video?
3.) Lastly, I've heard that you could "combine" the Raspberry Pi and Arduino Board into "one functional board?" If that is the case, is there a way for me to use the arduino to detect whatever the smoke sensor is giving and then have the Arduino relay a sort of message or something that could make the Raspberry Pi open a video?