Greenhouse Temperature · Humidity · Light Intensity Monitoring with iNut: Optimal Microclimate Control for Crops

Greenhouses exist to shelter and stabilize the environment for crops, yet the structure itself is a very sensitive "box": under harsh midday sun, temperature can spike to 40 °C within half an hour, then plunge at night; humidity sometimes condenses and causes fungal disease, other times turns bone-dry and wilts the plants; light is scarce during the rainy season, causing leggy growth, yet excessive at summer noon to the point of leaf scorch. Watching these swings by eye and by hand is nearly impossible — not to mention having to stay up all night.

The old approach is usually fragmented and slow to react: a thermometer on the wall, someone occasionally checking in and manually switching on a fan, readings jotted into a logbook that no one ever revisits. By the time an anomaly is noticed, the plants are already stressed. iNut replaces that with an automatic closed loop — measure, compare to threshold, control, alert — in real time, packing the whole greenhouse into your phone screen.

Every correct control action starts with an accurate reading. Inside the greenhouse, iNut connects three core sensors: temperature, air humidity and light intensity (lux/PAR), expandable with CO₂, substrate moisture and leaf temperature. Everything feeds into one iNut gateway, updating continuously — you instantly see which spot is overheating or which corner is under-lit, instead of guessing.

Greenhouses are typically long, humid and full of glass panels — running signal cables is both costly and prone to failure. iNut uses RS485 for industrial-grade sensors and WiFi Mesh so nodes relay signals to one another, covering the space evenly from end to end without long cable runs. For areas far from a power source, each node can run on solar power — install once, and data keeps flowing on its own.

Set the threshold once, and the system handles the rest: too hot → ventilation fans and roof vents run automatically; humidity too low → misting cools the air and adds moisture; harsh sunlight → shade nets pull themselves closed; insufficient light on rainy days → LED grow lights switch on to make up the photoperiod. This is exactly what the iNut Muro solution already does for mushroom houses — precise microclimate control — and that model scales directly to vegetables, flowers and strawberries.

Automatic control isn't enough if a fault goes unnoticed: a fan losing power, a bulb burning out, temperature spiking past the safe threshold. At the edge layer, iNut PC collects data on-site, runs the logic and pushes alerts via Email/Telegram the moment a threshold is crossed — with 4G uplink, so alerts still get through even where the network is weak. Data is still logged continuously by iNut Datalogger for later traceability, and iNut OPC (OPC UA/Modbus/XML-DA) helps it integrate with existing systems.

The entire greenhouse appears visually on iNut Platform — a self-hosted cloud platform with a SCADA dashboard: temperature – humidity – lux charts over time, per-device status, control history. Out in the field, the iNut app lets you view data, change thresholds and switch devices on/off remotely. Wherever you are, you stay on top of the microclimate and can intervene with just one tap.

From a small backyard greenhouse to a farm-scale cluster of net houses, iNut devices withstand the characteristically hot, humid environment, are powered flexibly by grid electricity or solar power, and transmit data reliably over wireless. Compact installation, configuration through the app, and adding more sensors or devices anytime you like — the infrastructure grows right along with your farm.

// Quick specs