Detecting Motion with PIR sensor: Uses a PIR sensor to detect motion and trigger outputs like LEDs or buzzers. Digital Voltmeter 2: An enhanced version of the voltmeter project that displays voltage ...

Connect the PIR sensor, LEDs, DC motor, and resistors to the Arduino UNO on the breadboard as per the provided code. Upload Code: Upload the provided Arduino code to the Arduino UNO using the Arduino ...

Working of Dog Barking Security using Arduino. Make the connections as per the circuit diagram and upload the code to Arduino Nano. When powered, the PIR sensor detects the IR rays emitted from the ...

The block diagram of the motion sensor alarm is shown in Fig. 2. Fig. 1: Author’s prototype Fig. 2: Block diagram of motion sensor alarm Circuit and working. The circuit diagram of the motion sensor ...