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Initialization: Sets up pin modes for the LED, PIR sensor, and piezo buzzer. Begins serial communication with a baud rate of 9600. Delays for 5 seconds to ensure stable start-up. Motion Detection: ...

Required Components for PIR Motion Sensor Light PIR Motion sensor Transistor BC547 (NPN) Relay module 12V Led strip Resistor 10k 12V DC socket Connecting wires 12V DC Adaptor / Battery PIR Motion ...

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 ...

In India, nearly 20 percent of the electricity is lost due to technical and commercial reasons. Three billion units of power are wasted every year. The Automation of lighting system with the usage of ...

The PIR module actually consists of a pyroelectric sensor (looks like an old metal transistor with a black window on the top), which generates energy when exposed to heat, and it’s tied in closely ...