- 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
You must be logged in to post a review.
We deliver all across India.
✅ Orders leave warehouse in 1–2 days.
✅ Delivery within 5–10 days after dispatch.
Related products
Automatic Irrigation System DIY Experiments Science Project Model STEM KIT (Assembled), 100% Tested
- Complete Automatic Irrigation System STEM kit – 100% assembled and tested.
- Includes full documentation: circuit diagrams, PCB layouts, and a testing guide.
- Step-by-step video tutorials available on YouTube for easy learning.
- https://youtu.be/FTUc5eaMeLs?si=oa_NNxBoCySZ7oin
- Dedicated support on working days (11 AM to 6 PM) via email: Smartxbrains@gmail.com.
- Fastest delivery across India. Ideal for electronics projects, automation, and STEM education.
Theft Alarm Using IR Sensor DIY Experimentsl Science Project Model STEM KIT (Assembled), 100% Tested
-
- Theft Alarm Using IR Sensor – Fully assembled, 100% tested kits.
- Includes full documentation with circuit diagrams, PCB layout, and testing documents.
- YouTube videos available for easy understanding.
- https://youtu.be/PM22ugMH5qg?si=NnmEJLpu6STxz4do
- 100% support available on working days from 11 AM to 6 PM via email (smartxbrains@gmail.com).
- Fastest delivery across India. Ideal for electronics projects, this Theft Alarm Using IR Sensor STEM Kit ensures reliability and performance.
Engine Overheat detection using NTC Ready DIY Experiments Science STEM KIT (Assembled), 100% Tested
- Complete Assembled Kit, 100% Tested: Engine Overheat Detection using NTC for educational and DIY experiments.
- Comprehensive Documentation: Includes circuit diagrams, PCB layout, testing guides, and more.
- YouTube Video Tutorials: Step-by-step assembly and working videos for easy understanding.
- https://www.youtube.com/watch?v=07QBYB69fVU
- Reliable Support: Available Mon-Fri (11 AM - 6 PM). Email us at Smartxbrains@gmail.com.
- Fast Delivery Across India: Designed for electronics projects, this kit ensures quality, performance, and convenience.
Automatic Temperature Control Fan DIY Experiments Science Project Model STEM KIT (Assembled) – 100% Tested
-
- Automatic Temperature Control Fan complete assembled kit – 100% tested.
- Includes full documentation: circuit diagrams, PCB layout, and testing documents.
- YouTube videos available for easy understanding.
- https://www.youtube.com/watch?v=3-Kn_HD-W4I
- 100% support available on working days (11 AM - 6 PM). Email us: Smartxbrains@gmail.com.
- Fastest delivery across India. Ideal for electronics projects, automation, and educational uses, this kit ensures reliability and performance.
Control Lamp Using IR DIY Experiments Science Project Model STEM KIT (Assembled), 100% Tested
-
- Control Lamp Using IR Sensor Complete assembled Kits – 100% Tested.
- Full documentation, including circuit diagrams, PCB layout, and testing documents.
- Videos available on YouTube for easy understanding.
- https://youtu.be/cC1w8wQZMZI?si=wnP2pkBJsR1oCcUi
- 100% Support on working days (11 AM - 6 PM). Email: smartxbrains@gmail.com.
- Fastest delivery all over India. Perfect for various electronics projects in India, the Control Lamp Using IR DIY Experiments STEM KIT (Assembled) ensures reliability and performance. Ideal for electronics projects, this kit offers quality and performance.
Touch Switch With Lamp DIY Experiments Science Project Model STEM KIT (Assembled), 100% Tested
-
- Touch Switch with Lamp Complete assembled Kit, 100% Tested.
- Includes full documentation, circuit diagrams, PCB layout, testing documents, and YouTube videos for easy understanding.
- https://youtu.be/wgNBk1AAEa0?si=_03gIQmEBCwzM_8F
- 100% support available on working days (11 AM - 6 PM) via email: smartxbrains@gmail.com.
- Fastest delivery across India, perfect for various electronics projects.
- Reliable and high-performance STEM KIT designed for educational and automation applications.
Transformer Vibration Detection DIY Experiments Science Project Model STEM KIT (Assembled), 100% Tested
- Transformer Vibration Detection DIY KIT – Assembled and 100% tested.
- Full documentation, including circuit diagrams, PCB layout, and testing documents.
- Includes YouTube videos for easy understanding.
- 100% support on working days from 11 AM - 6 PM via email: Smartxbrains@gmail.com.
- Fastest delivery all over India. Perfect for electronics projects in India, ensuring reliability and performance.
Heat Sensor Using NTC DIY Experiments Science Project Model STEM KIT (Assembled), 100% Tested
- Heat Sensor Using NTC, Complete assembled kit, 100% tested.
- Full documentation includes circuit diagrams, PCB layout, testing documents, etc.
- Videos available on YouTube for easy understanding.
- https://www.youtube.com/watch?v=07QBYB69fVU
- 100% Support on working days 11 AM - 6 PM, Email us at Smartxbrains@gmail.com.
- Fastest delivery all over India. Perfect for electronics, automation, and educational projects in India. Heat Sensor Using NTC DIY Experiments Science STEM KIT (Assembled), 100% tested ensures reliability and performance.


















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.