Baby Room Comfort Monitor Pro Kit with Arduino Uno + DHT22
Baby Room Comfort Monitor Pro Kit: Arduino-Powered Fresh Air Control for a Healthy Nursery
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Stale nursery air affects a baby’s sleep and respiratory health. Instead of guessing when to open a window, you’ll build a system that uses three DS18B20 temperature probes—placed inside the nursery, outdoors, and in the fresh-air duct—alongside a DHT22 humidity sensor. The Arduino reads these values in real time and varies a DC fan’s speed via an L298N driver to pull in fresh outdoor air only when it won’t cause a temperature shock or heat loss. The result is constant, gentle ventilation that keeps the room comfortable around the clock.
What You'll Build
You’ll assemble and program a wall-mountable control box that shows indoor/outdoor temperature, humidity, and fan duty cycle on a crisp 0.96-inch OLED. A DS3231 real-time clock logs data to the serial output, and the fan adjusts automatically based on a configurable PID-like logic you fine-tune. When outdoor air is too cold or too warm relative to the nursery setpoint, the system limits air exchange to protect the baby’s comfort while still preventing CO₂ buildup.
What You'll Learn
- Multi-sensor fusion: combining three DS18B20 probes and one DHT22 on a single Arduino bus
- PID-based fan speed control with an L298N motor driver and PCM modulation
- Data logging with a DS3231 RTC and serial monitoring for environment history
- Designing a safe, continuous-duty embedded system for infant spaces
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| DS18B20 Probe | 3 |
| DHT22 | 1 |
| L298N Driver | 1 |
| DC Fan 12V | 1 |
| DS3231 RTC | 1 |
| 0.96in OLED | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Capacitors | 10 |
| PCB Prototype Board | 2 |
| 12V Adapter | 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
B.Tech ECE and EEE students tackling embedded systems design labs will find a ready-to-integrate project that blends sensor networks with real-time actuation. Smart India Hackathon teams building IoT-enabled healthcare or home automation prototypes can use this as a core subsystem. Advanced hobbyists familiar with Arduino who want to move beyond simple blink-and-sensor demos into responsible infant care automation will appreciate the depth of the control logic and the safety considerations baked into the design.
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 included in the box to access an AI companion that walks you through each wiring and code step specific to this kit. You can also send photos and questions via WhatsApp—our support team typically replies within an hour.
Do I need prior experience with Arduino?
Yes. This is an advanced kit; you should be comfortable with the Arduino IDE, C++ programming, and basic electronics. If you are new, browse our beginner kits to build foundational skills first.
How does the fan speed control know when to increase or decrease?
The three DS18B20 probes continuously read the nursery, outdoor, and duct air temperatures. The Arduino calculates a difference threshold and uses the DHT22 humidity to decide a safe fan duty cycle. For example, if outdoor air is very cold, the fan slows to avoid chilling the room while still refreshing the air enough to prevent stuffiness.
Is this safe to leave running in a baby’s room?
All components operate on low-voltage DC, and the included 12V adapter is CE certified. The circuit boards are designed for continuous operation, and the fan is a quiet brushless model suitable for nursery use. As with any electronics near infants, mount the control box securely out of reach.
Infant Care — DS18B20 probes inside and outside control HRV fan speed to maintain ideal fresh air exchange without heat loss.
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.
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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