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Author Topic: PIR Sensor problem  (Read 722 times)
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Jr. Member
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Hello, so i found the pir sensor code on this site. Link : .
But gotta ask where do i connect the +ve of the sensor ? 5v or 3v3 ? Please help..

Minds are like parachutes. They only function when they are open.

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Edison Member
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Hi, What sensor do you have??  If it has 3 pins, Vcc, GND and Signal, then Vcc is usually +5V.

take a look here:

If your sensor looks like the Motion Sensor there, click on the sensor picture. The following page has information and code to test it (scroll down towards bottom).. 


Regards, Terry King  - Check great prices, devices and Arduino-related boards at
HOW-TO: http://ArduinoInfo.Info

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