Build a Smart Energy Audit Monitor with Arduino Mega: Log kWh Per Circuit and View Daily Cost Breakdown

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 single device that monitors three different electrical circuits in your home, lab, or workshop—logging real-time power consumption and calculating daily electricity costs in rupees. The Smart Energy Audit Monitor Kit turns this into reality using an Arduino Mega, a PZEM-004T precision energy module, and three ACS712 current sensors. On a 1.8-inch TFT, you’ll see a clear breakdown of each circuit’s energy usage and cost, while timestamped data is saved to a microSD card for later analysis.

What You'll Build

You'll assemble a DIN rail-mounted energy audit system that tracks voltage, current, power, and kilowatt-hours for three independent AC circuits. An onboard DS3231 real-time clock ensures accurate date and time stamps for every data point logged to the microSD card. The final device displays a daily cost summary on the color TFT, helping you identify power-hungry appliances or circuits and optimize energy consumption.

What You'll Learn

• Calibrate and interface PZEM-004T and ACS712 sensors for precise AC measurements
• Design and implement Arduino code to calculate kWh and electricity cost with multi-circuit logic
• Integrate a real-time clock and microSD module to create timestamped data logs for long-term analysis
• Build and package a complete DIN rail-mountable monitoring system, ready for deployment in a real electrical panel

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This advanced kit is designed for B.Tech ECE and EEE students working on energy management projects, final year capstone demonstrations, or Smart India Hackathon solutions. It’s equally suited for electronics hobbyists who want a real-world deployment-ready monitor and for ATL tinkering lab mentors guiding senior students.

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.

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.