ATL Smart Mirror Energy Audit Kit
ATL Smart Mirror Energy Audit Kit – Measure Power, Save Energy with Real Sensor Data
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Turn a window into a real-world energy lab. This kit guides students through a controlled experiment: they measure the DC power drawn by an LED strip to maintain a target light level, first with direct illumination and then after applying a reflective film behind the bulb. The INA219 sensors log voltage and current before and after the film, and the Arduino calculates the power difference — revealing how reflective surfaces reduce lighting energy demand. It’s a data-driven way to connect electronics, sustainability, and everyday building physics.
What You'll Build
Students assemble a window-mounted test rig that holds an LED strip, two INA219 power sensors, and a 16x2 LCD display. They connect everything to an Arduino Uno, run a preloaded sketch, and observe real-time watts and watt-hours. By comparing readings with and without the included A4 reflective film, they calculate the immediate power saving and project annual energy saved if the film were applied to a school window — a concrete, measurable STEM outcome.
What You'll Learn
- How INA219 sensors measure voltage, current, and power over I2C
- Calculating DC energy consumption in watt-hours and extrapolating to annual savings
- The physics of reflective surfaces and their role in reducing lighting load
- Displaying live sensor data on a 16x2 character LCD with an I2C backpack
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| INA219 Power Sensor | 2 |
| LED Strip 30cm | 1 |
| Reflective Film A4 | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| USB Cable | 1 |
| M-M Wires | 20 |
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
Designed for ATL Tinkering Labs, CBSE Class 6–10 science classrooms, and early B.Tech ECE/EEE lab sessions. It fits right into Smart India Hackathon junior challenges, school energy audit projects, and even IIT/NIT/VIT workshop demonstrations — anywhere a hands-on, data-logging energy experiment adds clarity to physics or electronics concepts.
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?
Scan the QR code to talk to the AI companion. It knows every wire and line of code for this kit. If you're still stuck, message us on WhatsApp — a real Compoden engineer will help within a few hours.
Does this kit require soldering?
No. All connections are made with male-to-male jumper wires. The LCD backpack, sensors, and LED strip connect directly to the Arduino's headers — no soldering iron needed.
Can I scale this experiment to measure a full room window?
Yes, the reflective film included is sized for the 30cm LED strip but can be ordered in larger sheets. The same two INA219 sensors will work; just reposition the LED and film. The Arduino code logs proportional power differences, so it scales linearly.
Is the reflective film safe for a real window?
Absolutely. The A4 film is automotive-grade, UV-stable, and can be trimmed. You can attach it to a glass pane with clear tape for a full-scale demonstration without damaging the window.
INA219 sensors measure power before and after adding reflective film to a window — calculates energy saving.
What's in this kit
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