Arduino PIR Security System Using Car Horn

Alright so in this project we wil be making a thief alarm using a PIR sensor, Arduino, Relay and a car horn! Parts You Will Need so for this project you will need:1x --- PIR Sensor HC-SR5011x --- 5v Relay board1x --- Arduino nano1x --- 12v 60 decibel car snail horn1x --- 12v 3s 200mah battery1x -...
By: ElectroDIY

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