Arduino Uno DHT11 Humidity Display Kit: Build a Comfort Index Bar Graph on LCD

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

Numbers on a screen tell only half the story. This kit lets you create a window into your room’s health — a compact device that reads temperature and humidity through a DHT11 sensor and translates them into a comfort index bar graph on a classic 16x2 LCD. The bar fills up like a battery, giving an instant, at-a-glance feel for whether the air is too dry, too humid, or just right. Perfect for a study desk, a nursery, or a first Arduino project that solves a real problem you can see and feel.

What You'll Build

You’ll assemble a standalone environmental monitor that measures humidity and temperature every second, calculates a comfort score based on standard human comfort zones, and displays it as a growing bar made of custom LCD characters. The current temperature and humidity readings sit above the bar, all powered by a 9V battery so you can place it anywhere. When the room becomes uncomfortable, the bar visually alerts you — an early lesson in turning raw data into meaningful action.

What You'll Learn

• Wiring and reading accurate humidity and temperature data from a DHT11 digital sensor
• Controlling a 16x2 character LCD via an I2C backpack to save Arduino pins
• Designing and storing custom characters in the LCD’s memory to create bar graph segments
• Converting analog comfort values into a dynamic visual scale with conditional logic

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Ideal for CBSE Class 11-12 learners bringing physics concepts to life, B.Tech ECE first-years tackling their first sensor integration lab, and ATL Tinkering Lab students prototyping environmental awareness tools. Smart India Hackathon participants will find it a quick way to demonstrate climate data visualization. Even a 10-year-old maker can follow the AI companion’s voice to build confidence with electronics.

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.