Claude in the Physical World: Relays, Valves & Actuatorsintermediate · ~180 min

Greenhouse Vent and Fan Controller on Real Temp and Humidity

Ever have a real-world task you wished software could just handle for you?

Leaving it undone means lost time and results you never get to use. This project sets it up for you — follow the steps yourself, or have a vetted AI Advisor build it for you.

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What you'll do

A closed-loop climate controller Claude Code built for your greenhouse — an ESP32 reading live air temperature and humidity, opening a low-voltage vent actuator and running a fan to hold your plants inside a growing band, with a hysteresis deadband that stops it hunting, a max-runtime cap so the actuator can't stall-burn, a hard overheat cap, and a sensor-fault fail-safe that throws the vents wide open so a dead sensor can never cook your plants.