Dew Point Kit: Turn Your Room Into a Science Lab with Arduino Uno and DHT22

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

Ever noticed water droplets forming on a cold glass on a humid day? That is dew point in action - the temperature where air becomes saturated and moisture condenses. This kit lets young builders measure that exact invisible threshold in real time, using a calibrated DHT22 sensor, an Arduino Uno, and the Magnus formula to compute the point where water vapour turns to liquid. The result appears instantly on a crisp OLED display, turning a subtle weather concept into a live, room-level experiment.

What You'll Build

You will assemble a standalone dew point meter that reads ambient temperature and humidity, processes the data through the Magnus equation inside Arduino code, and outputs the dew point temperature onto a bright 0.96-inch OLED screen. The finished gadget sits on your desk, showing exactly when condensation would begin to form - a hands-on tool for understanding moisture, comfort, and weather physics right in your own room.

What You'll Learn

• Interface digital sensors (DHT22) with an Arduino and read temperature/humidity values
• Code the Magnus formula in Arduino IDE to compute dew point from raw sensor data
• Drive a 0.96-inch OLED display using I2C communication for real-time output
• Assemble a complete electronic circuit on a breadboard, including pull-up resistors and power management

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for students from age 10 upwards who are encountering electronics for the first time, this kit fits seamlessly into CBSE Class 11-12 physics practicals, ATL Tinkering Lab sessions, and B.Tech ECE introductory workshops. It also makes a brilliant first Arduino build for curious kids at home who want to see sensors and code collide to explain everyday weather.

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.