How to read analog signals?

[Archangel]

I did a little bit more research on this But its pretty hard what i wanted to do is read a analog voltage off a circiut board andif that reading is true I want it to pulse low through the same pin reading the voltage will this be possible?


edit: bruce can you help me explain what ever line means it will give me a betetr understanding of how to see if i can use the if then statment to flash the led

Here is the hangup in your question:In English, True / False statements are digital statements, so when you say, "and if that reading is true ". . . we are not sure what you want "true" to represent. Please explain further . . . Does " true" represent a specific voltage, or just any voltage? Are you trying to test for a specific voltage? Bruce gave you the code above to receive the value of the voltage, so what do you want to do with that information?