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PZEM-004T energy sensor ×4 projects

Final-year project topics built with PZEM-004T energy sensor ×4 — working builds, abstracts and honest quotation pricing.

Prototype photo of a 4-outlet smart power strip: white enclosure with four Indian 3-pin sockets, ESP32 board, 4-channel relay module and PZEM-004T energy sensors, labeled wiring on white background
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Smart Power Strip with Per-Outlet Energy Monitoring, Scheduling and Android App (ESP32)

This project builds a 4-outlet smart power strip on an ESP32: each outlet is switched by its own relay channel and measured b...

4-Channel Relay Module Arduino firmware ESP32 · Wi-Fi
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