Smart Cooling System
Smart Home · Board: ESP8266 · Day 45 of 100
An ESP8266 spins up a fan automatically when the DHT11 reports heat. Closed-loop temperature control.
How it works
The ESP8266 reads temperature from the DHT11 on a schedule and compares it to a setpoint. Above the setpoint it energizes the relay and the fan spins; below it, everything rests. A textbook closed control loop: sense, decide, actuate, repeat.
What you'll learn
- Closed-loop control
- Temperature setpoints
- Relay-driven appliances
- Hysteresis in control loops
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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