I am working with arduino UNO and when i use the command analogRead("X") the program indicate a value in bits. The problem is that i am not putting voltage y the arduino board, there is nothing connected. Help please, it is for a college project.

Basic problem with analogRead()

samuz_15 April 24, 2014, 9:23pm 9

sorry, i was writting when you sent the message, and sorry for my ignorance but: how to remove that interference in arduino analog pins?

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