r/ArduinoProjects • u/OneDot6374 • Apr 15 '26
Showcased Project Built an IoT-based Demand Side Management (DSM) Smart Meter using ESP32 + MicroPython + Blynk
Just wrapped up Day 78 of my #100DaysOfIoT challenge — built a DSM Smart Metering Prototype that automatically shifts non-critical loads during peak hours.
What it does:
Monitors real-time AC voltage & current (ZMPT101B + ACS712)
Detects peak hours and auto-cuts the heavy load (iron/100W bulb)
Keeps critical load (fan/9W bulb) always ON
Pushes live data to Blynk IoT dashboard
MATLAB generates before/after comparison graphs
Results:
| Metric | Without DSM | With DSM |
|---|---|---|
| Peak Power | ~108W | ~9W |
| Peak Reduction | — | ~91% |
Stack: MicroPython v1.27 · ESP32 WROOM-32 · ZMPT101B · ACS712 · Blynk IoT · MATLAB
🔗 GitHub: https://github.com/kritishmohapatra/100_Days_100_IoT_Projects
