Server Room Temperature Monitor Kit – Auto Exhaust Fan Control for Server Rooms (Arduino Uno, DHT22 v2)

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Protect your server rack or home lab from moisture damage with a DIY humidity monitor that activates an exhaust fan the moment conditions cross a set threshold. Using the DHT22 sensor and Arduino Uno, you'll build a system that reads humidity and temperature, displays live data on an OLED screen, and triggers a relay when humidity spikes above your chosen limit — then automatically switches off once levels return to safe range.

What You'll Build

You'll assemble a compact monitoring node that continuously tracks temperature and humidity in your server room, data centre cabinet, or any critical electronics enclosure. The OLED display shows real-time readings and timestamped alerts using the DS3231 RTC, while the relay output can drive a standard 220V exhaust fan to pull moist air out. Once humidity drops below the threshold, the fan shuts off automatically, preventing unnecessary power draw and preserving equipment.

What You'll Learn

• Read and calibrate humidity/temperature data from the DHT22 sensor using Arduino libraries.
• Display real-time readings, threshold alerts, and timestamps on a 0.96-inch OLED screen.
• Set up a DS3231 RTC module to keep accurate time even when the Arduino is powered off.
• Activate a 5V relay to control an exhaust fan, with automatic on/off based on humidity level.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is ideal for CBSE Class 11-12 students pursuing computer science or physics projects, B.Tech ECE/EEE students designing environmental control demonstrations, and Smart India Hackathon teams tackling data centre cooling or smart building challenges. It aligns well with ATL Tinkering Lab sessions on sensor interfacing and automation.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.