Build an Arduino Laser Security System Alarm that Calls You!

In this video we make a GSM (cellular) upgrade to one of my previous electronics projects, the Laser Tripwire Alarm (Security System) using an Arduino Nano and SIM800L GSM SIM card module.
The main proto-board features an existing light-sensitive (LDR) alarm circuit which works in conjunction with a laser diode to detect whether or not an intruder has tripped it. The board features a couple of NE555 timer ICs and a LM358 comparator.

Before recreating this project, watch how I made my original Laser Alarm with bare components here:    • How to make a Laser Tripwire Alarm from sc...  

"Instatronic Web" was part of making this project possible, a big thanks to him for helping out!
Follow him on Instagram:
https://www.instagram.com/instatronic...

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Check this website out to learn more about the SIM800L GSM module:
https://lastminuteengineers.com/sim80...

Project files:
SIM800L Wire-up/Circuit diagram (With 5V jumper wire): https://drive.google.com/file/d/1kvHL...
SIM800L Wire-up/Circuit diagram (With capacitor) :https://drive.google.com/file/d/1aGNo...
Alarm Circuit diagram 1: https://drive.google.com/file/d/1D_uh...

Alarm Circuit diagram 2: https://drive.google.com/file/d/1mY1T...
Project code: https://drive.google.com/file/d/15w8B...

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Components and parts I used to make this upgrade:
(x1) DIY Laser Tripwire Alarm board - from video:    • How to make a Laser Tripwire Alarm from sc...  
(x1) SIM800L GSM/GPRS Module - https://amzn.to/3GnLe1A
(x1) Arduino Nano - https://amzn.to/3C8meJ4
(x1) 3.7V 1000maH battery/LM2596 DC-DC buck converter - https://amzn.to/3Wy9jbv / https://amzn.to/3VuY3LU
(x1)470-560μF capacitor - https://amzn.to/3PZzvJz
(x2) BC547 NPN Transistor - https://amzn.to/3WKYnqA
(x4) 10K Resistor - https://amzn.to/3Q1CTUd
(x1) 1K Resistor - (from resistor kit, link above)
Jumper wires - https://amzn.to/3VwvXzC
Jumper wires (short style) - https://amzn.to/3C8gOOk
(x2) Breadboard - https://amzn.to/3C8JF4R

Also watch:
Arduino-based Digital Thermometer;    • DIY Digital Thermometer | Temperature & Hu...  

DIY Police light circuits;    • How to make 2 Types of 12V Police light ci...  

DIY Mini Oscillating desk fan;    • How to make a Mini Oscillating Desk Fan fr...  
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Video chapters:
00:00 Intro
01:21 Tutorial
03:35 Testing and finding solutions
09:20 Trying it out with the Laser
11:09 Outro
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Tags:
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#arduino #alarm #gsm