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cropdroid-room

Ethernet-based room controller integrating multi-sensor monitoring and relay-driven AC control, exposing lightweight HTTP JSON telemetry.

TheoIm

Published January 14, 2026

Original author: jeremyhahn · United States of AmericaOriginal source (new tab)

cropdroid-room

Project description

1. What This Project Actually Does This project is best understood as a wired room automation node that continuously monitors environmental conditions while controlling multiple AC-powered devices through relay outputs. On the sensing side, it aggregates heterogeneous inputs: three DHT22 temperature/humidity sensors for room conditions, two 1-Wire temperature probes for water or pod monitoring, analog leak or water-level sensors, a photoresistor for ambient light, and an analog CO₂ proxy derived from voltage measurements. These values are periodically sampled in a fixed loop cycle and…

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