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Hey guys, welcome back, In the previous post, I told you how an IR sensor works, how to make a line follower using an IR sensor and to make a Simple DIY Burglar Alarm using an IR sensor and a Buzzer without using any micro controller or complicated coding.
In this Post, I will show you how to make a Simple PIR Burglar Alarm using Digispark.

To set this up, All you need is

PIR sensor
Digispark
Buzzer
Header Pins
9-12 Volt Power Adapter”

Link to article

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