Smart Curtain Daylight Sensor Kit - Arduino Uno Light Following Robot
Build a Light-Following Robot with the Smart Curtain Daylight Sensor Kit - Arduino Uno Project
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine a small robot that automatically turns and drives itself toward the brightest part of a room, just like a smart curtain seeking daylight. This project uses two light-dependent resistors (LDRs) to compare light levels in real time, steering a two-wheel chassis toward the sunniest spot. It's a gentle introduction to analog sensor logic and motor direction control, wrapped in a reward-driven build that moves as soon as you finish coding.
What You'll Build
You'll assemble a 2WD robot on a sturdy chassis that actively hunts the brightest light source - a flashlight, window, or lamp. The onboard Arduino Uno reads two LDRs placed at the front, computes the difference, and commands the L298N motor driver to turn the bot left, right, or straight. By the end, you'll have a fully functional light-chasing rover you can test indoors on any sunny afternoon.
What You'll Learn
- Reading analog values from LDRs and using the differential to decide robot direction
- Controlling DC motor speed and rotation polarity with an L298N driver and Arduino
- Assembling a rolling chassis with two gear motors, a caster wheel, and sensor mounts
- Calibrating light thresholds by modifying resistor values and adjusting Arduino code
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| LDR | 4 |
| L298N Motor Driver | 1 |
| TT Gear Motor | 2 |
| Castor Wheel | 1 |
| 2WD Chassis | 1 |
| 10k? Resistors | 10 |
| 100nF Caps | 5 |
| 18650 Cell | 2 |
| 18650 Holder | 1 |
| M-M Wires | 25 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Ideal for young makers in ATL Tinkering Labs, school science exhibition participants, and families looking for a first robotics experience. B.Tech ECE/EEE students can also use it as a quick sensor lab exercise before moving to Smart India Hackathon prototypes. The kit scales naturally from guided parent-child builds to independent classroom projects.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project - accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Simply scan the QR code and describe your issue to the AI companion; it can pinpoint wiring errors or code blocks instantly. You can also reach real humans via WhatsApp for hands-on help.
Do I need to solder any components?
No soldering is required. All connections are made with included male-to-male jumper wires, so you can plug everything directly into the breadboard or motor driver terminals.
Can the robot track sunlight indoors through a window?
Absolutely. The two LDRs will detect the brightest patch coming through glass. The AI companion includes a calibration guide to adjust sensitivity if the light gradient is less sharp.
What if I want the robot to stop once it reaches the brightest spot?
The stock code can be easily modified to halt motors when the LDR difference falls below a threshold. The companion provides a code snippet that adds this stationary-hold behavior.
Curtain - Two LDRs steer the robot toward the brightest light source. Introduces analog differential reading and motor direction.
What's in this kit
- Arduino Uno R3
- LDR x4
- L298N Motor Driver
- TT Gear Motor x2
- Castor Wheel
- 2WD Chassis
- 10k? Resistors x10
- 100nF Caps x5
- 18650 Cell x2
- 18650 Holder
- M-M Wires x25
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items