Server Room Temperature Monitor Smart Kit with ESP32 + DHT22
Build a Server Room Temperature Monitor with ESP32 and AWS IoT Shadow
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
In this advanced kit, you will assemble a complete server room environmental monitor that senses temperature, humidity, and pressure locally on an OLED display while synchronising state bidirectionally with AWS IoT Core. The device subscribes to shadow delta updates and turns a relay on or off within 500ms — exactly the kind of deterministic latency demanded by data centre cooling systems. When a technician updates the desired state from the AWS console, the hardware responds instantly, enforcing thermal policies or triggering backup cooling.
What You'll Build
A self-contained monitoring unit with an OLED that shows live DHT22 and BMP280 readings, a DS3231 real‑time clock for timestamped logs, and a 4‑channel relay module for controlling fans or chillers. Once assembled inside the provided enclosure, the device mounts in a server rack and gives you peace of mind for critical IT infrastructure. Everything communicates over MQTT with TLS, synced as an AWS IoT Device Shadow.
What You'll Learn
- Interfacing DHT22, BMP280, DS3231 RTC, and relay with ESP32 over I2C and GPIO
- Provisioning devices in AWS IoT Core, generating certificates, and establishing secure MQTT connections
- Implementing device shadow state synchronisation that reacts to cloud desired-state changes within 500ms
- Designing a power‑efficient industrial monitor using a buck converter and PCB prototyping
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 | 1 |
| BMP280 | 1 |
| 4-ch Relay Module | 1 |
| DS3231 RTC | 1 |
| LM2596 Buck Converter | 1 |
| 0.96in OLED | 1 |
| 100nF Caps | 10 |
| 4.7kΩ Resistors | 5 |
| PCB Prototype Board | 2 |
| Enclosure Box | 1 |
| 5V 2A PSU | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit is built for IT infrastructure managers overseeing small to mid-size server rooms, B.Tech ECE and EEE final year students designing industrial IoT projects, participants of the Smart India Hackathon working on cloud-connected hardware, and students from IITs, NITs, VIT, and BITS Pilani who want hands-on AWS IoT certification experience. It is equally suited for professionals preparing for AWS Certified IoT Specialty examinations.
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.
What if I get stuck during the build?
Scan the QR code on the box to access the AI companion trained on this kit, or message us on WhatsApp for human backup.
Can I integrate this with a different cloud platform?
While the kit is pre-configured for AWS IoT Core, the ESP32 firmware is open-source C++ using the Arduino framework, so you can adapt it to Azure IoT or Google Cloud IoT with modifications.
Does this kit require soldering experience?
Yes, soldering is required for PCB board assembly. The kit includes a soldering iron and solder wire, and the AI companion provides soldering guidance suitable for learners.
How is the 500ms shadow-to-hardware response achieved?
The ESP32 maintains a persistent MQTT connection to AWS IoT, subscribing to shadow delta topics; upon receiving a delta message, the firmware triggers the relay within the guaranteed latency window, leveraging FreeRTOS tasks for real-time response.
Data Centre — ESP32 device state synced to AWS IoT Device Shadow. Shadow desired state changes reflected in hardware within 500ms.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items