I created a smart motion detector alarm that sends SMS alerts — here's a free step-by-step guide

I recently built a DIY motion detector alarm using an Arduino Uno, PIR sensor, and SIM800L module — it sends an SMS whenever motion is detected. Super useful for things like home security or monitoring your mailbox. I’ve had a lot of people asking how I made it, so I put together a beginner-friendly 37-page guide. Inside, you’ll find: A complete wiring diagram and list of components Fully commented Arduino code A walkthrough on setting up SMS alerts using the SIM800 Step-by-step instructions to build a working real-world system I’ve dropped the link in the top comment if you’re interested. Would love to hear your thoughts or suggestions — happy to keep sharing more! https://xyvielyons.gumroad.com/l/smartmotiondetectoralarmsystem

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Maker Unlocked : Build a Smart Motion Detector Alarm System With SM...

A step-by-step project guide for Arduino, GSM, and PIR motion detectionWant to build your own smart security system?This 37-page eBook walks you through building a motion-activated alarm that sends SMS alerts to your phone🔍 What You’ll Learn:✅ How PIR motion sensors work and how to wire them✅ Interfacing an Arduino with a GSM module (li...