Sound-Activated Library Desk Lamp
This project aims to create a sound-activated desk lamp that is installed on each study desk in a library. The lamp will automatically turn off when the noise level exceeds a certain threshold, signaling that the environment is no longer conducive to studying.
How It Works:
- The desk lamp is equipped with a sound sensor that continuously monitors the noise level in its surroundings.
- When the ambient noise reaches a preset threshold (e.g., 60 dB), indicating that the noise level is too high for a quiet study environment, the lamp will automatically turn off.
- If the noise level falls below the threshold, the lamp remains on, encouraging quiet study behavior.
Target Audience:
This lamp is designed for library environments, helping maintain a quiet atmosphere for students and readers. It will act as both a practical lighting solution and a subtle reminder for people to keep noise levels low.


1. Electronic Components
- Single LED
- Sound sensor module (e.g., KY-038 or LM393)
- Arduino board (e.g., Arduino Uno or Arduino Nano)
- 220Ω resistor
- Breadboard
- Dupont wires
- Power adapter or Battery (5V)
- Button or switch (for manual control)
2. 3D Printing and Mechanical Components
- 3D printing material (PLA, ABS, or PETG)
- LED holder/base (3D printed)
- Screws and nuts
- Hot glue or super glue
- 3D printed stand
3. Tools
- Soldering iron and solder
- Battery holder
- Wire cutter or wire stripper