Smart Energy Meter with Usage Pattern Classifier
Build an ESP32-S3 Smart Energy Meter That Classifies Appliances Using AI
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Plug your appliances into a single energy meter and watch it tell you exactly what's running—fridge, fan, air conditioner, or heater—all by analysing the unique electrical signature each device draws. This project transforms raw current and power data into an on-device AI classifier that runs entirely on the ESP32-S3, with no cloud dependency.
What You'll Build
A fully enclosed smart energy meter with a bright OLED display showing real‑time voltage, current, power, and the classified appliance name. Every reading is stamped with date and time by an onboard RTC and saved to a microSD card, letting you track usage patterns over days and discover which appliance drives your energy bill.
What You'll Learn
- Interface ACS712 and PZEM-004T sensors with ESP32-S3 for precise AC energy monitoring
- Collect load‑signature datasets and label them by appliance type
- Train a TensorFlow Lite model to classify appliances from current waveform features
- Deploy the TFLite model for real‑time inference on the edge and log results with timestamps
Kit Contents
| Component | Quantity |
|---|---|
| ESP32-S3 Dev Board | 1 |
| ACS712 20A Current Sensor | 1 |
| PZEM-004T Energy Meter | 1 |
| DS3231 RTC Module | 1 |
| MicroSD Card Module | 1 |
| 0.96-inch OLED Display | 1 |
| LM2596 Buck Converter | 1 |
| 100nF Capacitors | 10 |
| PCB Prototype Board | 2 |
| Enclosure Box | 1 |
| 5V 2A Power Supply | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
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
CBSE Class 11–12 students exploring AI and embedded systems, B.Tech ECE/EEE undergraduates working on smart energy projects, and participants in Smart India Hackathon or ATL Tinkering Lab competitions. If you’ve built a basic sensor project and want to put real machine learning onto an MCU, this kit bridges the gap between prototype and deployed intelligence.
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?
The AI companion walks you through each sensor connection, code upload, and TFLite model conversion. If you hit a snag, just send a WhatsApp message — our team knows this exact kit inside out.
Do I need prior machine learning experience?
Not at all. The kit includes a pre‑trained TFLite model that classifies common household appliances out of the box. You’ll also learn to collect fresh load‑signature samples and retrain the model to recognise your own devices.
Can this monitor 230V AC mains safely?
Yes. The PZEM‑004T and ACS712 are galvanically isolated, and the enclosure provides a protective barrier. Always disconnect power when making wiring changes and follow the safety instructions in the build guide.
What if the model misclassifies a new appliance?
Load‑signature variability is normal. Use the data‑logging feature to capture samples of the new appliance, then follow the retraining flow to update the TFLite model — the AI companion shows you exactly how.
ACS712 current + PZEM-004T power fed into a TFLite model that classifies appliance type from load signature.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
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