Recently, one of serious air pollution issue is fine dust. And it charges a lot of portion. We need to monitor an air quality and handle this! Before we figure out it, looking up how to monitor an air quality.
First of all, This example give us information that is how much it will cost to make it. It says total cost for this project is about $ 150. Also there are Components info that all you need and Youtube/Github link. If you want to make an IoT Smart home, It will be nice :)
I made a weather station connected to the internet. It measures temperature, humidity, UV index, rainfall and it calculates few more important meteorological values. It then sends this data to weathercloud.net, which has nice graphics and UX. It also has a weather web camera. It cost me around 150€. I made this station as my school project.
Wiring the WIZNET W5100/W5500 as Network Time Protocol Client with Microcontroller