This is a guide on how to make a motion detector with an arduino! Enjoy!

Step 1: Items Needed

Arduino Uno microcontroller
Breadboard, Mini
PIR sensor, SE-10
Jumper wires
Piezo Buzzer
LED, any size or type
Nice project. I could use a similar sensor in my own project (alarm with arduino and rpi, with motion detection cam)<br>You can check it here http://dev.kprod.net/?q=intrusion-alarm-arduino-raspberrypi-camera-motion-aalarm
<p>I am not clear on the pull up 10K resistor. Can you provide a circuit sketch? The photo is not clear.</p>
I keep getting an error on &quot;Serial.begin(9600);&quot; &quot;serial was not declared in this scope&quot;. <br> <br>Any idea what I need to change?
Very cool! I just received my Adruino Uno in the mail and this is one of the projects that is helping me learn more about it. :) Thanks alot for the Instructable!

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