Smart Energy Meter
Sensors · Board: ESP32 · Day 78 of 100
A ZMPT101B and ACS712 let the ESP32 meter voltage and current, analyzed in Blynk and MATLAB. See your home's power draw live.
How it works
The ZMPT101B senses mains voltage and the ACS712 senses current, both as small analog signals the ESP32 samples rapidly. Multiplying instantaneous voltage by current gives real power, which accumulates into energy usage over time. Your home's power draw, measured and charted live.
What you'll learn
- AC voltage sensing
- Current transformer basics
- Real power computation
- Energy accumulation over time
Full project: code, wiring diagram & Wokwi simulation
The complete build guide lives in the original repo. Ours is a summary — the real thing is one click away.
Open full project on GitHub ↗Summary by SkillShop. Project by Kritish Mohapatra — code and diagrams belong to the original repo.
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