Arduino Uno R3 false input

hi, guys.

i have makershed brand arduino uno r3 is, think, malfunctioning.

when use analogread on single input pin, other pins read @ same time.
for instance, if plug pot a0 , analogread a0 , a1, same result both pins sweep pot.


 this doesn't appear happening on different arduino of same make.

anybody know what's up?

greetings,

quote from: mlstalcup on may 11, 2015, 04:41 am

for instance, if plug pot a0 , analogread a0 , a1, same result both pins sweep pot.

what connected a1?

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