TMP36 / LED

Hi! I have got an Arduino Uno and a EthernetShield. I have connected a TMP36 on an analogInput and a led on an digitalOutput.
I also send the temperature to the web and to the PC. If I turn on the led the temperature increase of 20°.
Why?

:0

Something is connected so that voltage drops ? Try 1kOhm in series to your LED

nothing :frowning:

Yes!! Thank you very very much!!
Sorry for my English, I'm Italian