I have one vibrate sensor and one water sensor. both of them work fine separately. Bu when i mix them it doesn't work.
Do you know what's wrong?

const int LED= 9;
const int vibrate = A0;
const int water = A1;
int sensorvib;
int sensorwat;
void setup(){
Serial.begin(9600);
pinMode(LED,OUTPUT);
pinMode(vibrate, INPUT);
pinMode(water, INPUT);
}
void loop() {
int sensorvib = analogRead(vibrate);
int sensorwat = analogRead(water);
if ((sensorvib < 1020) && (sensorwat > 200))
{
digitalWrite(LED,HIGH); 
delay(500);
digitalWrite(LED,LOW);
delay(500);
}
}

 

What doesn't work?
Do you get errors when you compile it or do you get a wrong respone when it runs?
Have you tested this program by only changing line 15 to only test one or the other of the inputs?
I don't see anything wrong with it except that you declare sensorvib and sensorwat twice.

 

What doesn't work?
Do you get errors when you compile it or do you get a wrong respone when it runs?
Have you tested this program by only changing line 15 to only test one or the other of the inputs?
I don't see anything wrong with it except that you declare sensorvib and sensorwat twice.

I can’t explain why, but experience has taught me that declaring a reference twice, globally and locally, often causes problems.

Comment out the first definitions (the global definitions) and try again.