Odd behavior on ADC, please help!

Other Hardware General Electronics
6

Code look OK ... Hmm...Not so..so..

 pinMode(A1, INPUT); // A bug here

//should be :
Nothing - A1 is analog pin 
 ------

 int sensorValue = analogRead(A1);  // A bug here

should be :

int sensorValue;

sensorValue = analogRead(A1);  // That is better