.. note:: Hello, welcome to the SunFounder Raspberry Pi & Arduino & ESP32 Enthusiasts Community on Facebook! Dive deeper into Raspberry Pi, Arduino, and ESP32 with fellow enthusiasts. **Why Join?** - **Expert Support**: Solve post-sale issues and technical challenges with help from our community and team. - **Learn & Share**: Exchange tips and tutorials to enhance your skills. - **Exclusive Previews**: Get early access to new product announcements and sneak peeks. - **Special Discounts**: Enjoy exclusive discounts on our newest products. - **Festive Promotions and Giveaways**: Take part in giveaways and holiday promotions. 👉 Ready to explore and create with us? Click [|link_sf_facebook|] and join today! Video 31: Alarm for Detecting Motion in the Dark ======================================================================================= This video demonstrates how to build an intruder alarm system using a Raspberry Pi, motion sensor, light sensor, and buzzer, providing step-by-step guidance on both the hardware setup and Python coding. 1. **Introduction to the project**: Building an intruder alarm system using Raspberry Pi. 2. **Overview of the components used**: Raspberry Pi, PIR motion sensor, light sensor (ADC-0834), active buzzer, and transistor (S8550). 3. **Explanation of the hardware setup**: Wiring the components together, including connecting the buzzer, motion sensor, and light sensor to the Raspberry Pi GPIO pins. 4. **Coding the alarm system**: Using Python code to read sensor inputs, detect motion and darkness, and trigger the buzzer alarm accordingly. 5. **Testing the system**: Demonstrating the functionality of the alarm system by simulating intruder detection in different lighting conditions. 6. **Discussion of future projects**: Previewing upcoming tutorials on additional components like accelerometers, gyroscopes, RFID, and cameras for further Raspberry Pi projects. **Video** .. raw:: html