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Day 52 of 100

Sensor Anomaly Detector

Sensors · Board: ESP8266 · Day 52 of 100

ThingSpeak and MATLAB flag strange DHT11 and LDR readings from the ESP8266. Machine-assisted fault detection on sensor streams.

How it works

DHT11 and LDR readings stream to ThingSpeak, where MATLAB analyzes the history and flags values that deviate statistically from the norm. A stuck sensor or a real environmental event both show up as anomalies — the system tells you something changed before you notice it yourself.

What you'll learn

  • Anomaly detection basics
  • Z-score statistics
  • Cloud analytics pipelines
  • Fault vs event distinction

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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