A simple burglar alarm built using an ATtiny45. You can attach it anywhere and will it will inform when someone tries to steal something.
Project tutorial by Salman Faris
Low cost, easy build pick to light system.
Project tutorial by PAJ
This is the next step with an Ultrasonic HC-SR04 Echo and LCD 1602.
Project tutorial by Ingo Lohs
The purpose of the project is to detect the passing of cars and people at the entrance to an orchard and a warning beep inside this house.
Project tutorial by Juan Salvador Aleixandre Talens
The purpose of the project is to create a system of selective opening of shop windows.
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