The LDR (Light Dependent Resistor) Sensor Module lets your Arduino ‘see’ how bright or dark the surroundings are. It is the classic sensor for automatic street-lights, night lamps and light-following robots.
Key Features
- On-board LDR + LM393 comparator
- Digital output (dark/light) with adjustable threshold
- Many boards also expose an analog light level
- Fast response and simple wiring
- 3.3V–5V compatible
Specifications
| Working voltage | 3.3V – 5V DC |
| Sensor | Photoresistor (LDR) |
| Output | Digital HIGH/LOW (adjustable) |
| Comparator | LM393 |
Popular Project Ideas
- Automatic street-light / night lamp
- Day-night detector
- Light-following robot
- Smart curtain / greenhouse light logger
Available now at Arduino Corner, Rawalpindi (Shaheen Market, DAV College Road) and delivered nationwide with cash on delivery. A favourite of engineering students in Rawalpindi & Islamabad for school, college and final-year projects.
