- Complete LDR-Based Light Detection Kit – Fully Assembled & 100% Tested.
- Includes comprehensive documentation: circuit diagrams, PCB layouts, and testing guides.
- Step-by-step video tutorials on YouTube for easy understanding.
- https://www.youtube.com/watch?v=2Avy6w8KXbY
- Dedicated support: Mon-Sat, 11 AM – 6 PM via Smartxbrains@gmail.com.
- Fast delivery across India. Perfect for school projects, automation, and STEM learning.





LDR Based Light Detection DIY Experiments Science Project Model STEM KIT Ready (Assembled), 100% Tested
₹1,025.00 Original price was: ₹1,025.00.₹599.00Current price is: ₹599.00. + GST
100 in stock
Product Overview
The LDR-Based Light Detection DIY Kit is an educational and practical science project designed for students, hobbyists, and electronics enthusiasts. This ready-to-use kit employs a Light Dependent Resistor (LDR) and a comparator IC to detect light changes, making it ideal for STEM experiments and electronics projects.
How It Works
This system uses the LDR to monitor light intensity. In the absence of light, the LDR triggers a comparator IC (LM393) to activate a connected relay, which in turn controls the system’s output. The piezo buzzer produces an audible signal when no light is detected.
Key Features
- Assembled & Tested: No assembly required, ensuring immediate usability.
- Comprehensive Resources: Includes circuit diagrams, PCB layouts, and video tutorials.
- High-Quality Components: Built with reliable LDR, LM393 IC, and a durable relay.
- Adjustable Sensitivity: Fine-tune detection levels with a variable resistor (R2).
- Educational Value: Perfect for hands-on learning in electronics and automation.
Applications
- Electronics Projects: Explore light-sensing and detection principles.
- STEM Learning: Ideal for science experiments and automation projects.
- Automation Systems: Light-activated controls for various applications.
- School Projects: Ready-to-submit with detailed documentation.
Component List
- IC LM393 – Dual Comparator IC
- LDR – Light Dependent Resistor
- Resistors: R2 (10k variable), R3 (1k), R4 (1k), R5 (10k), R6 (10k)
- Capacitor: C1 (1µF)
- LEDs: Red and Green
- Piezo Buzzer
- Relay and PCB
- 5V USB Power Cable
Why Choose This Kit?
- Fully assembled and tested for immediate use.
- Comprehensive documentation and video tutorials for easy learning.
- Suitable for Indian environments and educational standards.
- Backed by reliable customer support.
Keywords
- LDR light detection DIY kit
- Ready assembled STEM kit India
- Light-sensing electronics project
- LDR circuit for automation
- DIY electronics science kit
19 reviews for LDR Based Light Detection DIY Experiments Science Project Model STEM KIT Ready (Assembled), 100% Tested
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Paaji (verified owner) –
Less cost than other websites
Lokesh (verified owner) –
Best cost electronic components in India
Komal (verified owner) –
Drone parts i ordered and found ok
Ayush (verified owner) –
Good quality.
Lokesh (verified owner) –
Good techinical knowledge
Vikas (verified owner) –
Good techinical knowledge
Vikas (verified owner) –
Drone parts i ordered and found ok
Prakash (verified owner) –
Good quality.
Sneha (verified owner) –
Online best cost electronic components
Lokesh (verified owner) –
Best cost electronic components in India
Zohar (verified owner) –
I got my project done with these components Great Support
Mayur (verified owner) –
The product is firmly packed.
Viral (verified owner) –
Very fast delivery.
Er.Prashant (verified owner) –
Good support and recommended
Akshay (verified owner) –
Good Stem kit
Rahul (verified owner) –
Very well worth the money.
Lokesh (verified owner) –
Good Stem kit
Harsh (verified owner) –
Good quality.
Shubham (verified owner) –
Good quality.