Is my Arduino duffed or me?
Started a new project today, hooked up a 16x2 LCD, and a potentiometer. To start with the screen is simply displaying the reading from the pot with analogRead("PotPinNumber") but its fluctuating like mad:
Here is a video on YouTube (http://www.youtube.com/watch?v=fgEm7czlUVg YT has cut eh quality so it isn't very clear!), to start with I have turned the pot to max and you can see the fluctuation in the reading, then I unplug the pot from the analog input so it should be reading nothing but it drops to about 450 and fluctuates around there when surely it should drop to 0 (mystery voltage from somewhere perhaps?), then I plug the pot back in the analog input and you can see it go back up and fluctuate. This is the case irrelevant of which port the pot is plugged into and weather it is plugged in or not it still reads something?
Is the Arduino dead or am I dead?