We have built a very simple Motion detector circuit here. We are using a HC-SR501 PIR Sensor, an LED (which will glow whenever there is a motion infront of the sensor) and resistor.

Arduino PIR Motion Sensor Interfacing Circuit Diagram Connect the PIR sensor's VCC (or +) pin to the Arduino's 5V output. Connect the GND (-) pin of the PIR sensor to any GND pin on the Arduino.

simple circuit with an Arduino and PIR motion sensor that can detect movement. An LED will light up when movement is detected.

Arduino Motion Sensor – Circuit and Working The circuit diagram of the automation device using a motion sensor is shown in Fig. 2. It consists of an Arduino Nano board (MOD1), a PIR sensor (S1), a ...

PIR sensors are more complicated than many of the other sensors explained in these tutorials (like photocells, FSRs and tilt switches) because there are multiple variables that affect the sensors ...

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 ...

The PIR sensor can be calibrated using the potentiometer on it. During this time, try that no motion is produced near the PIR sensor so that it settles its IR detector properly. So, when the PIR ...

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-ohm speaker.

Security Alarm This article is about making an intruder alarm using Arduino and PIR sensor. When the PIR sensor will detect an intruder, it will send a signal to Arduino and the Arduino will sound an ...