Reading from sensor

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jjok
Hi. I'm trying to read from a PIR sensor. I'm aware that the sensor requires 5V, so I'm using a separate power supply for now. The problem is that as soon as I switch connect the power, the signal constantly detected by the pin. Even if I just touch a screwdriver to the pin, instead of using the sensor, a signal is detected.

Am I doing something wrong?
```
setWatch(function() {
  console.log("Movement detected");
}, D1, {repeat:true, edge:"rising"});
```
Thanks.

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