The topmost part of the PIR sensor consists of a lens with concentric grooves carved into the plastic. These are called Fresnel lens. The contours on this plastic helps in gathering parallel light ...

int pirPin = 2; // PIR sensor output connected to pin 2 int ledPin = 13; // LED connected to pin 13 (or relay module) void setup() { pinMode(pirPin, INPUT); pinMode ...

Introduction: In the pursuit of efficiency, automation has become a key player in simplifying daily tasks. One such innovation is the utilization of motion sensors coupled with Arduino technology to ...

Note: The position of potentiometers or pins may vary based on your PIR sensor vendor. Follow the Silk screen to determine you pinouts The circuit Diagram for arduino motion detector project by ...

2: Block diagram of motion sensor alarm The circuit diagram of the motion sensor alarm is shown in Fig. 3. It consists of a PIR motion sensor (MS1), Arduino Nano (Board1), LM386 audio amp (IC1), and 8 ...

In this video tutorial, we will learn how a PIR Sensor works and how to use it with the Arduino Development Board for detecting motion. Video Courtesy: How To Mechatronics For more details, source ...

In this article, I have added three sensors with Arduino UNO and user can choose the required ... but I have chosen the following three: The real-time PIR sensor in Proteus senses the motion of a ...