04/03/2026
🚀 Arduino Weather Monitoring Project using DHT22 and OLED Display
I recently built a small Arduino-based weather monitoring system using a DHT22 temperature & humidity sensor and a 0.96" OLED display (SSD1306) with an Arduino Mega.
This project reads real-time environmental data and displays it clearly on the OLED screen. It also calculates additional values such as Heat Index and Dew Point, and visualizes the data with a live graph on the display.
🔧 Technologies & Components Used
• Arduino Mega 2560
• DHT22 Temperature & Humidity Sensor
• SSD1306 128x64 OLED Display (I2C)
• Arduino IDE & C++
• Adafruit SSD1306 / GFX Libraries
📊 Project Features
✔ Real-time temperature monitoring
✔ Humidity measurement
✔ Heat index calculation
✔ Dew point calculation
✔ Live graph visualization on OLED
This project helped me explore sensor integration, data visualization, and embedded system design using Arduino. It can also be expanded into a full IoT weather monitoring system using WiFi modules like ESP8266 or ESP32.
In this project, I built a DIY Arduino Weather Station using a DHT22 temperature and humidity sensor and a 0.96" OLED display with an Arduino Mega.The DHT22 ...