A Simple Beginner Arduino Code for sensing the presence of humans using PIR Sensor with a time limit. Here, We have used a 20 by 4 LCD Display and a PIR Sensor. When the PIR senses movement using IR ...

* find an easy code for beginners to get started with PIR sensor and Arduino. * TechValer does not claim this code to be its own. TechValer is greatly thankful for original * creaters of this code and ...

Let me introduce another simple microcontroller-based do-it-yourself circuit that detects motion and excites a light source in a flash. The “snooper” here is an ordinary passive infrared (PIR) motion ...

Sometimes, projects start in somewhat unlikely places. This one began when [Istvan Raduly] scored a fake raven at a neighbor’s garage sale and decided to turn it into a thunder-and-lightning ...

In the microcontroller era today, Arduino is more than just a tool to accomplish hobby tasks. There is actually a close relationship between microcontroller technology and home security, since you can ...

Abstract: In this paper we design and implement an embedded surveillance system by use of ultrasonic signal coding of ultrasonic sensors with multiple pyroelectric infrared sensors (PIR) to detect an ...