This project uses an Arduino board with a PIR motion sensor to detect movement. When motion is detected, an LED lights up and a buzzer sounds. It's ideal for simple security systems or motion-based ...

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: Continuously reads ...

when it detects a moving target. Most Digital PIR sensor modules have three connector pins: Vcc (5V), Ground (0V), and Output. The output is a digital LOW or HIGH, depending on whether the sensor has ...

Even though Attiny85 is fitting here, I opted for Digispark just because of its plethora of features like USB programming interface, on-board voltage regulator, and Arduino IDE compatibility. The code ...

The PIR Motion Sensor on the left is made by Parallax and sold by Radio Shack. ... Here is the Arduino code for the Parallax sensor. ... flash the on-board LED in front of digital pin 13.