Baby Room Comfort Monitor Mini Kit with Arduino Uno + DHT22
Monitor Your Baby’s Room Humidity & Auto-Control a Dehumidifier with This Arduino Uno + DHT22 Kit
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Infant care demands constant environmental vigilance. Excess humidity can promote mould growth, dust mites, and respiratory discomfort — all of which are especially risky for a baby. With this kit, you’ll build a compact, Arduino-powered room monitor that reads humidity via a precision DHT22 sensor, displays trends on an OLED screen, logs data to a microSD card with timestamped records from a DS3231 RTC, and triggers a relay to activate a dehumidifier whenever levels rise above your chosen threshold.
What You’ll Build
A standalone baby room comfort monitor that continuously tracks humidity and temperature, logs historical data for trend analysis, and automatically controls a connected dehumidifier to maintain a safe, comfortable atmosphere. The system runs on a 9V battery and can be deployed in minutes.
What You’ll Learn
- Wiring and reading a DHT22 humidity/temperature sensor with Arduino
- Controlling mains-powered appliances safely via a relay module
- Logging time-stamped sensor data to a microSD card using an RTC module
- Displaying real-time data and system status on an OLED screen
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| DHT22 | 1 |
| 5V Relay Module | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| 1N4007 Diode | 3 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 9V Battery Snap | 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 ideal for CBSE Class 11–12 students exploring embedded systems for school science exhibitions, B.Tech ECE/EEE first-year students building mini projects, and ATL Tinkering Lab innovators looking for a practical infant-care automation solution. The build aligns perfectly with Smart India Hackathon themes around smart healthcare and home 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.
What if I get stuck during the build?
Scan the QR code inside the kit to launch the AI build companion — it recognizes this exact project and offers step-by-step guidance. You can also reach us on WhatsApp for human support.
Can this kit really control a 220V dehumidifier?
Yes. The 5V relay module safely switches a mains-powered dehumidifier up to 10A. Just connect the dehumidifier’s power cord through the relay’s COM and NO terminals, and the included 1N4007 diode provides flyback protection.
How do I view the logged humidity data?
The microSD card stores CSV files with timestamped records. Remove the card and open the file on any computer to analyse humidity trends over hours or days.
Is this kit safe to use in an actual baby’s room?
Absolutely. The low-voltage Arduino circuit operates on a 9V battery, and the relay module isolates the mains appliance completely. Place the enclosure (any small box) out of the baby’s reach, and the sensor can be positioned nearby.
Infant Care — DHT22 humidity above threshold triggers relay dehumidifier. Logs humidity trends to SD card.
What's in this kit
Other projects you can build
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