Weather Station

The project consists of a weather station that measures the temperature, humidity and air quality and displays the values on an LCD. If the Air Quality exceeds a specific value, a LED will start blinking to inform you that there is a bad air quality index.

Humidity & Temperature Sensor and Air Quality Sensor values are processed by Arduino UNO and displayed on an LCD. Depending on the air quality value, a LED will start blinking.

Components:

• Arduino Uno
• Breadboard
• LCD 1602 IIC/I2C
• Air Quality Sensor MQ-135
• Humidity & Temperature Sensor DHT11
• Jumper wires
• Resistor
• Led

I used Arduino IDE. External Libraries:

• LiquidCrystal_I2C
• DHT

This was my first Arduino Project and it was really interesting to make. By using LiquidCrystal_I2C and DHT external libraries I could easily read the values from DHT11 sensor and display them on LCD.

weather_station.zip

• 21/04/2022 - Project theme selection
• 29/04/2022 - Order of components
• 02/05/2022 - Order of additional components
• 04/05/2022 - Finished the project
• 26/05/2022 - Presented the project at the lab
• 27/05/2022 - Finished writing wiki page

• Arduino Uno Datasheet
• ATmega328P Datasheet

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