> Pins that need to be inputs but at some time may be uncommitted,
> for example when an input device is removed/unplugged, should
> have a pull-up or pull-down resistor so they don't float

Is this true for analog inputs also?  I have a couple of those that are used
only intermittently, but was afraid that a resistor to Vdd or ground might
throw off the reading significantly.



----- Original Message -----
> The easiest "something" is to set them to outputs. If there's a
> chance a track could be shorted to the opposite polarity, add
> a series resistor, one that will limit the pin current (20 - 25mA).
> Pins that need to be inputs but at some time may be uncommitted,
> for example when an input device is removed/unplugged, should
> have a pull-up or pull-down resistor so they don't float
>
> --
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